NEEDLE ROLLER BEARINGS - Bianchi Industrial

CAT-1586E

CAT-1586E

NEEDLE ROLLER BEARINGS

NEED

LE R

OLLER

BE

AR

ING

S

Recognizing that conservation of the global environment is the top-priority challenge for the world’s population, Nippon Thompson will conduct its activities with consideration of the environment as a corporate social responsibility, reduce its negative impact on the environment, and help foster a rich global environment.

ISO 9001 & 14001 Quality system registration certificate

• The specifications and dimensions of products in this catalog are subject to change without prior notice.

• When these products are exported, the exporter should confirm a forwarding country and a use, and, in case of falling under the customer's requirements, take necessary procedures such as export permission application.

• Although all data in this catalog has been carefully compiled to make the information as complete as possible, NIPPON THOMPSON CO., LTD. shall not be liable for any damages whatsoever, direct or indirect, based upon any information in this catalog. NIPPON THOMPSON CO., LTD. makes no warranty, either express or impiled, including the impiled warranty of merchantability or fitness for a particular purpose.

• Reproduction and conversion without permission are prohibited.

CAT-1586E

CAT-1586E

NEEDLE ROLLER BEARINGS

NEED

LE R

OLLER

BE

AR

ING

SRecognizing that conservation of the global environment is the top-priority challenge for the world’s population, Nippon Thompson will conduct its activities with consideration of the environment as a corporate social responsibility, reduce its negative impact on the environment, and help foster a rich global environment.






J15CRBHV

K37PBK11K15K23

SBGESBB

J19J19

CRBCCRB

J23CRBTJ17CRBFV J25CRBTF

K58K59K59

SNASNMSNPT

I25I31I35I39I43

CF…BCFKRCFE…BCFKRECFES…B

I45I49I49I51I53

CF…WBCF-RU1CF-FU1CF-SFU…BCF…G

I55I57I61I65

CF…/SGCFSCFS…WNUCF…B

I67I67I77I22

CRCR…BCRH…BCL

K38K39K42

PHSPOSPHSA

J27CRBS

K49K51

LHSALHS

I101I103

NURTCRY

(R)NASTNARTNART…/SG

(I89)I90I93I99

M55

D75(D83)D89

Gifu factory main entrance

Assembling process in a clean room

1

This catalog adopts the SI system (system of international units) in conformance with ISO (International Organization for Standardization) Standard 1000.

In the table of dimensions, standard products are referred to using identification numbers marked with . The products are reputed for high quality, reasonable price and quick delivery. The identification numbers marked with refer to our semi-standard products.The specifications and dimensions of products in this catalogue are subject to change without prior notice.

The IKO Needle Roller Bearing Series are manufactured through a control system that alleviates

their impact on the global environment to meet the quality requirements of ISO 14001 in

compliance with the quality requirements level of ISO 9001 for quality improvement.

The standard products listed in this catalog comply with the specifications of the ten hazardous

materials mentioned cited in the European RoHS Directive.

CAT-1586E

2 3

A

B

C

D

E

F

G

H

I

J

K

L

M

TA・TLA・BA・BHA

KT・KT…N

KT…EG・KTV…EG

NA・TAFI・TRI・BRI

TAF…/SG

NAF

NAG・NAU・TRU・NAS

NTB・AS・AZK・WS・GS

NAX・NBX・NATA・NATB

IRT・IRB・LRT・LRB

CF…B・CFKR・CFS・NUCF…B・CR…B・CR

CF…/SG

NAST・NART・NURT・CRY

NART…/SG

CRBHV・CRBFV・CRBC・CRB・CRBT・CRBTF・CRBS

SB・GE・SBB

PB・PHS・POS・PHSA

LHSA・LHS

SNA・SNM・SNPT

OS・DS・WR・AR・Needle Roller

Description of Each Series & Table of Dimensions

Shell Type Needle Roller Bearings

Needle Roller Cages for general usage

Needle Roller Cages for engine connecting rods

Machined Type Needle Roller Bearings

C-Lube Machined Type Needle Roller Bearings

Needle Roller Bearings with separable cage

Roller Bearings

Thrust Bearings

Combined Type Needle Roller Bearings

Inner Rings

Cam Followers

C-Lube Cam Followers

Roller Followers

C-Lube Roller Followers

Crossed Roller Bearings

Spherical Bushings

Pilloballs

L-balls

Super Flexible Nozzles

Parts For Needle Roller Bearings

Characteristics of Needle Roller Bearings

Types and Features of Bearings

Outline of Bearing Selection

Basic Dynamic Load Rating and Life

Basic Static Load Rating and Static Safety Factor

Calculation of Bearing Loads

Boundary Dimensions and Identification Number

Accuracy

Clearance

Fit

Design of Shaft and Housing

Lubrication

Friction and Allowable Rotational Speed

Operating Temperature Range

Handling of Bearings

General Explanation

1

1

17

1

75

79

1

1

1

1

1

55

81

99

1

1

29

45

55

1

B

C

C

D

D

D

E

F

G

H

I

I

I

I

J

K

K

K

K

L

A 3

A 5

A 16

A 17

A 21

A 22

A 26

A 30

A 37

A 39

A 44

A 49

A 56

A 57

A 57

M33Miscellaneous Tables

M59Alphabetical Index

A1 A2

Nippon Thompson Co., Ltd. is a bearing manufacturer that launched the technical development of needle roller bearings for the first time in Japan and is proud of the high quality level and abundant varieties of its products.Needle roller bearings are bearings for rotary motion that incorporate needle- shaped thin rollers instead of ordinary bearing balls or rollers. Compared with other rolling bearings, they are small-sized and lightweight but have a large load capacity. They are widely used with high reliability in the fields of automobiles, industrial machinery, OA equipment, etc. as resource-saving type bearings that make the whole machine compact.

A3 A4

A

B

C

D

E

F

G

H

I

J

K

L

M

Bearings can be classified into two main types, namely rolling bearings and sliding bearings. Rolling bearings

can be subdivided further into ball bearings and roller bearings according to the rolling elements.

IKO Needle Roller Bearings are high-precision rolling bearings with a low sectional height, incorporating needle

rollers as the rolling element. They have the following features.

Merits of Rolling Bearings

Compared with sliding bearings, rolling bearings

have the following merits:

Radial ballbearings

Thrust ballbearings

Radial rollerbearings

Thrust rollerbearings

Bal

l bea

rin

gs

Ro

ller

bea

rin

gs

Metals, bushings, others

Deep groove ball bearings

Angular contact ball bearings

Self-aligning ball bearings

Others

Thrust ball bearings with flat back face

Thrust ball bearings with aligning seat washer

Double-direction angular contact thrust ball bearings

Others

Needle roller bearings

Cylindrical roller bearings

Tapered roller bearings

Self-aligning roller bearings

Others

Thrust needle roller bearings

Thrust cylindrical roller bearings

Thrust tapered roller bearings

Others

Classification of bearings


Stable accuracy can be maintained for long periods.

Owing to less wear, stable accuracy can be maintained for long periods.

Static and kinetic friction is low.

Since the difference between static friction and kinetic friction is small and the frictional coefficient is also small, drive units or machines can be made more compact and lightweight, saving machine costs and power consumption.

Machine reliability is improved.

Since the bearing life can be estimated based on rolling fatigue, machine reliability is improved.

Lubrication is simplified.

Since grease lubrication is sufficient in most cases, lubrication can be simplified for easy maintenance.

Merits of Needle Roller Bearings

Compared with other rolling bearings, IKO Needle

Roller Bearings have the following advantages:

Rotating torque is small, improving mechanical efficiency.

Since the rotating radius is small, the rotating torque is also small under the same frictional conditions, thus improving mechanical efficiency.

With a low sectional height, they can withstand heavy loads.

Since they have a low sectional height compared with other rolling bearings and yet can withstand heavy loads, machines can be made more compact and lightweight, thus saving costs.

Inertia is minimized.

Since the bearing volume and weight are small, the moment of inertia of the bearing is minimized when it is put in motion.

Most suited to oscillating motions.

Many rolling elements are arranged at a small spacing pitch, and this configuration is most suited to oscillating motions.

Ro

llin

g b

eari

ng

s

Bea

rin

gs

Slid

ing

bea

rin

gs

Bearings can be classified into two main types, namely rolling bearings and sliding bearings. Rolling bearings

can be subdivided further into ball bearings and roller bearings according to the rolling elements.

IKO Needle Roller Bearings are high-precision rolling bearings with a low sectional height, incorporating needle

rollers as the rolling element. They have the following features.

Merits of Rolling Bearings

Compared with sliding bearings, rolling bearings

have the following merits:

Radial ballbearings

Thrust ballbearings

Radial rollerbearings

Thrust rollerbearings

Bal

l bea

rin

gs

Ro

ller

bea

rin

gs

Metals, bushings, others

Deep groove ball bearings

Angular contact ball bearings


Others

Thrust ball bearings with flat back face

Thrust ball bearings with aligning seat washer

Double-direction angular contact thrust ball bearings

Others


Cylindrical roller bearings

Tapered roller bearings

Self-aligning roller bearings

Others


Thrust cylindrical roller bearings

Thrust tapered roller bearings

Others

Classification of bearings


Stable accuracy can be maintained for long periods.

Owing to less wear, stable accuracy can be maintained for long periods.

Static and kinetic friction is low.

Since the difference between static friction and kinetic friction is small and the frictional coefficient is also small, drive units or machines can be made more compact and lightweight, saving machine costs and power consumption.

Machine reliability is improved.

Since the bearing life can be estimated based on rolling fatigue, machine reliability is improved.

Lubrication is simplified.

Since grease lubrication is sufficient in most cases, lubrication can be simplified for easy maintenance.

Merits of Needle Roller Bearings

Compared with other rolling bearings, IKO Needle

Roller Bearings have the following advantages:

Rotating torque is small, improving mechanical efficiency.

Since the rotating radius is small, the rotating torque is also small under the same frictional conditions, thus improving mechanical efficiency.

With a low sectional height, they can withstand heavy loads.

Since they have a low sectional height compared with other rolling bearings and yet can withstand heavy loads, machines can be made more compact and lightweight, thus saving costs.

Inertia is minimized.

Since the bearing volume and weight are small, the moment of inertia of the bearing is minimized when it is put in motion.

Most suited to oscillating motions.

Many rolling elements are arranged at a small spacing pitch, and this configuration is most suited to oscillating motions.

Ro

llin

g b

eari

ng

s

Bea

rin

gs

Slid

ing

bea

rin

gs

A

B

C

D

E

F

G

H

I

J

K

L

M

A5 A6

C-Lube Machined Type Needle Roller Bearings TAF… /SG

Classification of Bearings


Thrust Roller Bearings


Needle Roller Cages


Roller Bearings

Thrust Needle Roller Bearings

NAFW, RNAFW

with Three-point Contact Ball Bearing

with Angular Contact Ball Bearing

with Thrust Roller Bearing

with Thrust Ball Bearing

Roller Bearings for Sheaves

Needle Roller Bearings with Separable Cage

Needle Roller Cages for Engine Connecting Rods

Needle Roller Cages for General Usage

TA, TAM

TLA, TLAM

BA, BAM

BHA, BHAM

YT

YTL

YB

YBH

KT, KT…N

KTW

KT…EG

KTV…EG

NA, RNA

TAFI, TAF

TRI, TR

BRI, BR

GTRI, GTR

NAF, RNAF

NAU

NAG

TRU

NAS

NTB

AZK, AZ

NAXI, NAX

NBXI, NBX

NATA

NATB

IKO Bearings can be roughly classified into radial bearings and thrust bearings according to applicable load direction. Radial Bearings are grouped into Shell Type Needle Roller Bearings, Machined Type Needle Roller Bearings, and various other types. Thrust Bearings are grouped into Thrust Needle Roller Bearings and Thrust Roller Bearings.Follower Bearings that are used for cam mechanisms and linear motion are grouped into Cam Followers and Roller Followers.

Crossed Roller Bearings are special shape bearings that can simultaneously receive loads in all directions with a single bearing.Bearings other than rolling bearings, such as self-aligning Spherical Bushings that can support radial loads and axial loads and PILLOBALLs and L-Balls that are used for link mechanisms, are also available.

Types and Features of BearingsR

adia

l Bea

rin

gs

Thru

stBe

arin

gsCo

mbi

ned T

ype

Bear

ings

High Rigidity Type Crossed Roller Bearings (V) CRBHV

CF…B, CFKR

CFES…B

CFE…B, CFKRE

CF…WB

CF-RU1, CF-FU1

CF-SFU…B

NUCF…B

CR, CR…B, CRH

NURT

Mounting Holed Type High Rigidity Crossed Roller Bearings (V) CRBFV

CRBC, CRB

Mounting Holed Type Super Slim Crossed Roller Bearings CRBTF

NAST, RNAST

NART, CRY

C-Lube Machined Type Needle Roller Bearings TAF… /SG

Classification of Bearings




Needle Roller Cages


Roller Bearings


NAFW, RNAFW

with Three-point Contact Ball Bearing

with Angular Contact Ball Bearing

with Thrust Roller Bearing

with Thrust Ball Bearing





TA, TAM

TLA, TLAM

BA, BAM

BHA, BHAM

YT

YTL

YB

YBH

KT, KT…N

KTW

KT…EG

KTV…EG

NA, RNA

TAFI, TAF

TRI, TR

BRI, BR

GTRI, GTR

NAF, RNAF

NAU

NAG

TRU

NAS

NTB

AZK, AZ

NAXI, NAX

NBXI, NBX

NATA

NATB

IKO Bearings can be roughly classified into radial bearings and thrust bearings according to applicable load direction. Radial Bearings are grouped into Shell Type Needle Roller Bearings, Machined Type Needle Roller Bearings, and various other types. Thrust Bearings are grouped into Thrust Needle Roller Bearings and Thrust Roller Bearings.Follower Bearings that are used for cam mechanisms and linear motion are grouped into Cam Followers and Roller Followers.

Crossed Roller Bearings are special shape bearings that can simultaneously receive loads in all directions with a single bearing.Bearings other than rolling bearings, such as self-aligning Spherical Bushings that can support radial loads and axial loads and PILLOBALLs and L-Balls that are used for link mechanisms, are also available.

Types and Features of Bearings

Rad

ial B

eari

ng

sTh

rust

Bear

ings

Com

bine

d Typ

eBe

arin

gs

High Rigidity Type Crossed Roller Bearings (V) CRBHV

CF…B, CFKR

CFES…B

CFE…B, CFKRE

CF…WB

CF-RU1, CF-FU1

CF-SFU…B

NUCF…B

CR, CR…B, CRH

NURT

Mounting Holed Type High Rigidity Crossed Roller Bearings (V) CRBFV

CRBC, CRB

Mounting Holed Type Super Slim Crossed Roller Bearings CRBTF

NAST, RNAST

NART, CRY

A

B

C

D

E

F

G

H

I

J

K

L

M

A7 A8

Shell Type Needle Roller Bearings are lightweight with the lowest sectional height among needle roller bearings with outer ring, because they employ a shell type outer ring made from a thin special-steel plate which is accurately drawn, carburized and quenched.Since these bearings are press-fitted into the housing, no axial positioning fixtures are required. They are ideal for use in mass-produced articles that require economy.


Radial Bearings Page B1

Needle Roller Cages for General Usage are bearings that display excellent rotational performance. Their specially shaped cages with high rigidity and accuracy, precisely guide the needle rollers.Since needle rollers with extremely small dimensional variations in diameter are incorporated and retained, Needle Roller Cages for General Usage are useful in small spaces when combined with shafts and housing bores that are heat treated and accurately ground as raceway surfaces.

Radial Bearing Page C1

Machined Type Needle Roller Bearings have an outer ring made by machining, heat treatment, and grinding. The outer ring has stable high rigidity and can be easily used even for light alloy housings.These bearings are available in various types and optimally selectable for different conditions such as heavy loads, high-speed rotation and low-speed rotation. They are most suitable for general-purpose applications.

Radial Bearing Page D1

In Needle Roller Bearings with Separable Cage, the inner ring, outer ring and Needle Roller Cage are combined, and they can be separated easily. This type has a simple structure with high accuracy. In addition, the radial clearance can be freely selected by choosing an assembly combination.These bearings have excellent rotational performance, because Needle Roller Cages are used.


Roller Bearings, in which rollers are incorporated in double rows, are non-separable heavy-duty bearings.They can withstand not only radial loads but axial loads as well, which are supported at the contacts between the shoulders of inner and outer rings and the end faces of rollers. Therefore, they are most suitable for use at the fixing side of a shaft.

Radial Bearing Page E1

Needle Roller Gages for Engine Connecting Rods are used for motor cycles, small motor vehicles, outboard marines, snow mobiles, general-purpose engines, high- speed compressors, etc. that are operated under extremely severe and complex operating conditions such as heavy shock loads, high speeds, high temperatures, and stringent lubrication.Needle Roller Cages for Engine Connecting Rods are lightweight and have high load ratings and high rigidity as well as superior wear resistance.





Roller Bearings


Shell Type Needle Roller Bearings are lightweight with the lowest sectional height among needle roller bearings with outer ring, because they employ a shell type outer ring made from a thin special-steel plate which is accurately drawn, carburized and quenched.Since these bearings are press-fitted into the housing, no axial positioning fixtures are required. They are ideal for use in mass-produced articles that require economy.


Radial Bearings Page B1

Needle Roller Cages for General Usage are bearings that display excellent rotational performance. Their specially shaped cages with high rigidity and accuracy, precisely guide the needle rollers.Since needle rollers with extremely small dimensional variations in diameter are incorporated and retained, Needle Roller Cages for General Usage are useful in small spaces when combined with shafts and housing bores that are heat treated and accurately ground as raceway surfaces.


Machined Type Needle Roller Bearings have an outer ring made by machining, heat treatment, and grinding. The outer ring has stable high rigidity and can be easily used even for light alloy housings.These bearings are available in various types and optimally selectable for different conditions such as heavy loads, high-speed rotation and low-speed rotation. They are most suitable for general-purpose applications.


In Needle Roller Bearings with Separable Cage, the inner ring, outer ring and Needle Roller Cage are combined, and they can be separated easily. This type has a simple structure with high accuracy. In addition, the radial clearance can be freely selected by choosing an assembly combination.These bearings have excellent rotational performance, because Needle Roller Cages are used.


Roller Bearings, in which rollers are incorporated in double rows, are non-separable heavy-duty bearings.They can withstand not only radial loads but axial loads as well, which are supported at the contacts between the shoulders of inner and outer rings and the end faces of rollers. Therefore, they are most suitable for use at the fixing side of a shaft.

Radial Bearing Page E1

Needle Roller Gages for Engine Connecting Rods are used for motor cycles, small motor vehicles, outboard marines, snow mobiles, general-purpose engines, high- speed compressors, etc. that are operated under extremely severe and complex operating conditions such as heavy shock loads, high speeds, high temperatures, and stringent lubrication.Needle Roller Cages for Engine Connecting Rods are lightweight and have high load ratings and high rigidity as well as superior wear resistance.





Roller Bearings


A

B

C

D

E

F

G

H

I

J

K

L

M

A9 A10

Cam Followers

Inner Rings

Thrust Bearings consist of a precisely made cage and rollers, and can receive axial loads. They have high rigidity and high load capacities and can be used in small spaces.Thrust Needle Roller Bearings use needle rollers, whileThrust Roller Bearings use cylindrical rollers.

Thrust Bearings

Thrust Bearing Page F1

Cam Followers are bearings with a stud incorporating needle rollers in a thick walled outer ring.They are designed for outer ring rotation, and the outer rings run directly on mating cam guide surfaces.Various types of Cam Followers are available. They are widely used as follower bearings for cam mechanisms and for linear motions.

Follower Bearing Page I1

Roller FollowersRoller Followers are bearings in which needle rollers are incorporated in a thick walled outer ring.These bearings are designed for outer ring rotation, and the outer rings run directly on mating cam guide surfaces.They are used as follower bearings for cam mechanisms and for linear motions.


Crossed Roller BearingsCrossed Roller Bearings are high-rigidity and compact bearings with their cylindrical rollers alternately crossed at right angles to each other between inner and outer rings. A single Crossed Roller Bearing can take loads from any directions at the same time such as radial, thrust, and moment loads.These bearings are widely used in the rotating parts of industrial robots, machine tools, medical equipment, etc. which require compactness, high rigidity and high rotational accuracy.

Crossed Roller Bearing Page J1

Combined Type Needle Roller Bearings are combinations of a radial bearing and a thrust bearing. Caged Needle Roller Bearings are used as radial bearings and Thrust Ball Bearings or Thrust Roller Bearings are used as thrust bearings.They can be subjected to radial loads and axial loads simultaneously.


Combined Type Bearing Page G1

Inner Rings are heat-treated and finished by grinding to a high degree of accuracy and are used for Needle Roller Bearings.In the case of Needle Roller Bearings, normally the shafts are heat-treated and finished by grinding and used as raceway surfaces. However, when it is impossi-ble to make shaft surfaces according to the specified surface hardness or surface roughness, Inner Rings are used.

Component part Page H1

Cam Followers

Inner Rings

Thrust Bearings consist of a precisely made cage and rollers, and can receive axial loads. They have high rigidity and high load capacities and can be used in small spaces.Thrust Needle Roller Bearings use needle rollers, whileThrust Roller Bearings use cylindrical rollers.

Thrust Bearings

Thrust Bearing Page F1

Cam Followers are bearings with a stud incorporating needle rollers in a thick walled outer ring.They are designed for outer ring rotation, and the outer rings run directly on mating cam guide surfaces.Various types of Cam Followers are available. They are widely used as follower bearings for cam mechanisms and for linear motions.


Roller FollowersRoller Followers are bearings in which needle rollers are incorporated in a thick walled outer ring.These bearings are designed for outer ring rotation, and the outer rings run directly on mating cam guide surfaces.They are used as follower bearings for cam mechanisms and for linear motions.


Crossed Roller BearingsCrossed Roller Bearings are high-rigidity and compact bearings with their cylindrical rollers alternately crossed at right angles to each other between inner and outer rings. A single Crossed Roller Bearing can take loads from any directions at the same time such as radial, thrust, and moment loads.These bearings are widely used in the rotating parts of industrial robots, machine tools, medical equipment, etc. which require compactness, high rigidity and high rotational accuracy.

Crossed Roller Bearing Page J1

Combined Type Needle Roller Bearings are combinations of a radial bearing and a thrust bearing. Caged Needle Roller Bearings are used as radial bearings and Thrust Ball Bearings or Thrust Roller Bearings are used as thrust bearings.They can be subjected to radial loads and axial loads simultaneously.


Combined Type Bearing Page G1

Inner Rings are heat-treated and finished by grinding to a high degree of accuracy and are used for Needle Roller Bearings.In the case of Needle Roller Bearings, normally the shafts are heat-treated and finished by grinding and used as raceway surfaces. However, when it is impossi-ble to make shaft surfaces according to the specified surface hardness or surface roughness, Inner Rings are used.

Component part Page H1

A11 A12

A

B

C

D

E

F

G

H

I

J

K

L

M

L-Balls

Seals for Needle Roller BearingsSpherical BushingsSpherical Bushings are self-aligning spherical plain bushings, which have inner and outer rings with spherical sliding surfaces. They can take a large radial load and a bi-directional axial load at the same time.They are divided into steel-on-steel types that are suitable for applications where there are alternate loads or shock loads, and maintenance-free types which require no lubrication.

Spherical Sliding Bearing Page K1

PILLOBALLsPILLOBALLs are compact self-aligning spherical plain bushings which can support a large radial load and a bi- directional axial load at the same time.PILLOBALL Rod Ends have either a female thread in the body or a male thread on the body, so they can be easily assembled onto machines.PILLOBALLs are used in control and link mechanisms in machine tools, textile machines, packaging machines, etc.


L-Balls are self-aligning rod-ends consisting of a special zinc die-cast alloy body and a studded ball which has its axis at right-angles to the body.They can perform tilting movement and rotation with low torque, and transmit power smoothly due to the uniform clearance between the sliding surfaces.They are used in link mechanisms in automobiles, construction machinery, farm and packaging machines, etc.


Seals for Needle Roller Bearings have a low sectional height and consist of a sheet metal ring and special synthetic rubber.As these seals are manufactured to the same sectional height as Needle Roller Bearings, grease leakage and the penetration of foreign particles can be effectively prevented by fitting them directly to the sides of combinable bearings.

Component Part Page L1

Cir-clips for Needle Roller BearingsCir-clips for Needle Roller Bearings have been specially designed for needle roller bearings on which, in many cases, generally available Cir-clips cannot be used. They have a low sectional height and are very rigid.There are Cir-clips for shafts and for bores, and they are used for positioning to prevent bearing movement in the axial direction.


Needle RollersNeedle Rollers are used for needle roller bearings and are rigid and highly accurate.These needle rollers are widely used as rolling elements for bearings, and also as pins and shafts.


L-Balls

Seals for Needle Roller BearingsSpherical BushingsSpherical Bushings are self-aligning spherical plain bushings, which have inner and outer rings with spherical sliding surfaces. They can take a large radial load and a bi-directional axial load at the same time.They are divided into steel-on-steel types that are suitable for applications where there are alternate loads or shock loads, and maintenance-free types which require no lubrication.


PILLOBALLsPILLOBALLs are compact self-aligning spherical plain bushings which can support a large radial load and a bi- directional axial load at the same time.PILLOBALL Rod Ends have either a female thread in the body or a male thread on the body, so they can be easily assembled onto machines.PILLOBALLs are used in control and link mechanisms in machine tools, textile machines, packaging machines, etc.


L-Balls are self-aligning rod-ends consisting of a special zinc die-cast alloy body and a studded ball which has its axis at right-angles to the body.They can perform tilting movement and rotation with low torque, and transmit power smoothly due to the uniform clearance between the sliding surfaces.They are used in link mechanisms in automobiles, construction machinery, farm and packaging machines, etc.


Seals for Needle Roller Bearings have a low sectional height and consist of a sheet metal ring and special synthetic rubber.As these seals are manufactured to the same sectional height as Needle Roller Bearings, grease leakage and the penetration of foreign particles can be effectively prevented by fitting them directly to the sides of combinable bearings.


Cir-clips for Needle Roller BearingsCir-clips for Needle Roller Bearings have been specially designed for needle roller bearings on which, in many cases, generally available Cir-clips cannot be used. They have a low sectional height and are very rigid.There are Cir-clips for shafts and for bores, and they are used for positioning to prevent bearing movement in the axial direction.


Needle RollersNeedle Rollers are used for needle roller bearings and are rigid and highly accurate.These needle rollers are widely used as rolling elements for bearings, and also as pins and shafts.


A

B

C

D

E

F

G

H

I

J

K

L

M

A13 A14

F1～

G1～

I1～

I81～

Bearing series Appearance Direction ofmotion

Load directionand capacity

Allowable rotational speed

Sectionalheight

ReferencepageFriction

Thrust Bearings


Cam Followers

Roller Followers


Roller bearings

With thrust ball bearing

With thrust roller bearing

With angular contact ball bearing

With three-point contact ball bearing

Caged type

Full complement type

Separable caged type

Non-separable caged type

Non-separable full complement type




Sectionalheight


Shell TypeNeedle RollerBearings

NeedleRoller Cages

Machined TypeNeedle RollerBearings

Needle RollerBearings withSeparable Cage

Roller Bearings

Caged type

Caged type

Caged type

Caged type

Fullcomplementtype

Fullcomplementtype

Fullcomplementtype

For sheaves

Forgeneral usage

For engineconnectingrods

B1～

C1～

C17～

D1～

D79～

E1～

Rotation Oscillating motion

Radial load

Axial load

Light load

Medium load

Heavy load

Especially excellent Excellent NormalSymbol

Features of Bearings

F1～

G1～

I1～

I81～




Sectionalheight


Thrust Bearings


Cam Followers

Roller Followers


Roller bearings

With thrust ball bearing

With thrust roller bearing

With angular contact ball bearing

With three-point contact ball bearing

Caged type


Separable caged type

Non-separable caged type

Non-separable full complement type




Sectionalheight


Shell TypeNeedle RollerBearings

NeedleRoller Cages

Machined TypeNeedle RollerBearings

Needle RollerBearings withSeparable Cage

Roller Bearings

Caged type

Caged type

Caged type

Caged type

Fullcomplementtype

Fullcomplementtype

Fullcomplementtype

For sheaves

Forgeneral usage

For engineconnectingrods

B1～

C1～

C17～

D1～

D79～

E1～


Radial load

Axial load

Light load

Medium load

Heavy load



A

B

C

D

E

F

G

H

I

J

K

L

M

A15 A16

An example of procedure for bearing selection

J1～

K1～

K29～

K45～

Identify the machine and place where the bearing is to be used. Confirm the requirements for bearings such as required bearing performance, and also confirm the operating conditions and special environment conditions.

Select the bearing type suitable for the operating conditions by considering load direction and magnitude, rigidity, friction, allowable rotational speed, bearing space, etc.

See page

A5

Select the bearing dimensions by calculating bearing load, life, static safety factor, etc.

1

2

3

4

5

6

7

8

9





Sectionalheight



Spherical Bushings

PILLOBALLs

L-Balls

Caged type,Separator type


Slim type

Steel-on-steel type

Maintenance-free type


Lubrication type

Insert type, Lubrication type

Die-casting type, Lubrication type


Radial load

Axial load

Light load

Medium load

Heavy load


IKO Bearings are available in many types and sizes. To obtain satisfactory bearing performance in machines and equipment, it is essential to select the most suitable bearing by carefully studying the requirements for the application.Although there is no particular procedure or rule for bearing selection, an example of a commonly adopted procedure is shown in the figure below.


Selection of bearing type

Selection of bearing dimensions

Selection of accuracy class, etc.

Selection of radial clearance and fit

Determination of bearing dimensions, accuracy, radial clearance and fit

Selection of lubrication and dust-proof methods

Design of surrounding part

Determination of final specifications of the bearing and the surrounding part

Confirmation of requirements and operating conditions

See page

A17

Select the accuracy as required by the machine or equipment. See page

A30

Select the radial clearance considering the fit, temperature, rotational speed, inclination of the inner and outer rings, etc.

See page

A37

Select oil or grease lubrication. After selection of lubricant, in case of oil lubrication, select the oil application method. Select the sealing method according to the lubricant.

See page

A49

Design the surrounding part based on how to mount or dismount and based on mounting dimensions. See page

A57

An example of procedure for bearing selection

J1～

K1～

K29～

K45～

Identify the machine and place where the bearing is to be used. Confirm the requirements for bearings such as required bearing performance, and also confirm the operating conditions and special environment conditions.

Select the bearing type suitable for the operating conditions by considering load direction and magnitude, rigidity, friction, allowable rotational speed, bearing space, etc.

See page

A5

Select the bearing dimensions by calculating bearing load, life, static safety factor, etc.

1

2

3

4

5

6

7

8

9





Sectionalheight



Spherical Bushings

PILLOBALLs

L-Balls

Caged type,Separator type


Slim type

Steel-on-steel type



Lubrication type

Insert type, Lubrication type

Die-casting type, Lubrication type


Radial load

Axial load

Light load

Medium load

Heavy load


IKO Bearings are available in many types and sizes. To obtain satisfactory bearing performance in machines and equipment, it is essential to select the most suitable bearing by carefully studying the requirements for the application.Although there is no particular procedure or rule for bearing selection, an example of a commonly adopted procedure is shown in the figure below.


Selection of bearing type

Selection of bearing dimensions

Selection of accuracy class, etc.

Selection of radial clearance and fit

Determination of bearing dimensions, accuracy, radial clearance and fit

Selection of lubrication and dust-proof methods

Design of surrounding part

Determination of final specifications of the bearing and the surrounding part

Confirmation of requirements and operating conditions

See page

A17

Select the accuracy as required by the machine or equipment. See page

A30

Select the radial clearance considering the fit, temperature, rotational speed, inclination of the inner and outer rings, etc.

See page

A37

Select oil or grease lubrication. After selection of lubricant, in case of oil lubrication, select the oil application method. Select the sealing method according to the lubricant.

See page

A49

Design the surrounding part based on how to mount or dismount and based on mounting dimensions. See page

A57

A

B

C

D

E

F

G

H

I

J

K

L

M

A17 A181N=0.102kgf=0.2248lbs.1mm=0.03937inch

Basic Dynamic Load Ratingand Life

CP（）

p

Operating conditions

Occasional or short term usage ・Power tools ・Agricultural machines

・Construction machinery ・Conveyors・Elevators

・Roll neck of rolling mills ・Small motors・Deck cranes・General cargo cranes・Passenger cars

・Factory motors・Machine tools・General gear units・Printing machines

・Crane sheaves・Compressors・Important gear units

Infrequent usage but requiring reliable operation

Intermittent operation but for comparatively long periods

・Escalators ・Centrifugal separators・Blowers・Wood working machines・Plastic extruding machines

・Paper making machinesOperated in excess of 8 hours per day or continuously for an extended time

・Water supply equipment・Power station equipment

Continuous use for 24 hours and accidental stops not allowed

Machine and life factor fh

〜 3 2〜 4 3〜 5 4〜 7 6〜

Basic rating life

The basic rating life is defined as the total number of revolutions that 90% of a group of identical bearings can be operated individually under the same condi-tions free from any material damage caused by rolling fatigue.For rotation at a constant rotational speed, the basic rating life can be represented by the total service hours.

Basic dynamic load rating

The basic dynamic load rating is defined as the con-stant radial load (in the case of radial bearings) or the constant axial load acting along the bearing central axis (in the case of thrust bearings) that allows a basic rating life of 1,000,000 revolutions.

Calculation of rating life

The relationship among the basic rating life, basic dynamic load rating and dynamic equivalent load (bearing load) of rolling bearings is as follows:

　　　L10

＝　　 ……………………………………(1)

　　where, L10 ：Basic rating life,　106 rev. C ：Basic dynamic load rating,　N P ：Dynamic equivalent load,　N p ： Exponent, Roller bearing: 10/3

Ball bearing: 3Accordingly, when the rotational speed per minute is given, the basic rating life is represented as the total service hours according to the following equations:

　　　Lh ＝　　＝ 500 f h　……………………(2)

　　　f h＝ f n　　 …………………………………(3)

　　　f n ＝　　 …………………………………(4)

　　where, Lh ：Basic rating life represented by

service hours,　h n ：Rotational speed,　min-1

f h ：Life factor

f n ：Velocity factorIn addition, the rating life can be calculated by obtain-

ing f h and f n from the life calculation scales of Fig. 2.

Life

Rolling bearings will suffer damage due to various causes during service. Damage such as abnormal wear, seizure, and cracks is caused by improper use, including incorrect mounting, lack of oil, dust intrusion and so on, and can be avoided by remedying these causes. However, bearings will eventually be dam-aged due to fatigue-flaking even if used properly. When a bearing rotates under load, the raceways and the rolling elements are subjected to repeated stress-es concentrated on the part close to the surface. Fatigue, therefore, occurs in the surface layer, pro-ducing damage in the form of scaling. This is called flaking (spalling). When this occurs, the bearing can no longer be used.

Bearing Life

Bearing life is defined as the total number of revolu-tions (or total service hours at a constant rotational speed) before a sign of the first flaking appears on the roll ing surface of raceway or roll ing elements. However, even when bearings of the same size, structure, material and heat treatment are subjected to the same conditions, the bearing lives will show variation (See Fig. 1.). This results from the statistical nature of the fatigue phenomenon.In selecting a bearing, it is incorrect to take an aver-age life for all bearings as the design standard. It is more practical to consider a bearing life that is reliable for the greater propor t ion of bear ings used. Therefore, the basic rating life defined in the following is used.

106L1060n

CP

p

33.3n（）

1/p

Bearing life factors for various machines

The required life of the bearing must be determined according to the machine in which the bearing is to be used and the operating conditions.Table 1 shows reference values of life factors for selecting a bearing for each machine.

Table 1 Life factor of bearings f h for various machines

Fig. 2 Scales for rating life calculation

Rotational speed

Velocity factor

Basic rating life represented by service hours

Life factor

　　　　　　　Rotational speed

Velocity factor

Basic rating life represented by service hours

Life factor

Roller bearings10

200 1000 10000 80000

100 1000 10000

1.44

0.76 1.0 2.0 3.0 4.0 4.6

1.0 0.20

15 20

300 400 500 600 700 800 900 2000 3000 4000 6000 8000 20000 40000 60000

30 40 60 80 150 200 300 400 600 800 1500 2000 3000 4000 6000 8000 15000 20000 30000 40000 60000

1.4 1.3

0.80 0.85 0.90 0.95 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.5 3.5 4.5

1.2 1.1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.28 0.24 0.22 0.18 0.16 0.14 0.12 0.106

min-1

nfn

hLhfh

10

200 1000 10000 80000

100 1000 10000

1.49

0.74 1.0 2.0 3.0 4.0 5.0 5.4

1.0 0.20 0.10

15 20

300 400 500 600 700 800 900 2000 3000 4000 6000 8000 20000 4000030000 60000

30 40 60 80 150 200 300 400 600 800 1500 2000 3000 4000 6000 8000 15000 20000 30000 40000 60000

1.4 1.3

0.80 0.90 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.5 3.5 4.5

1.2 1.1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.28 0.24 0.22 0.18 0.16 0.14 0.12 0.09 0.082

min-1

nfn

hLhfh

Ball bearings

Fig. 1 Variation of rolling fatigue life

Failu

re p

roba

bility

den

sity

(Fre

quen

cy o

f fai

lure

)

Bas

ic r

atin

g lif

e

Ave

rage

life

Rolling fatigue life

A

B

C

D

E

F

G

H

I

J

K

L

M


Life of oscillating bearing

The life of an oscillating bearing can be obtained from equation (5).

　　　LOC＝　

　　 ………………………………(5)

　　where, LOC： Basic rat ing l i fe of osci l lat ing

bearing,　106 cycles 2θ： Oscillating angle, deg. (See Fig.3)

P ： Dynamic equivalent load,　NTherefore, when the oscillating frequency n 1min-1 is given, the basic rating life as represented by total

oscillating hours can be obtained by substituting n 1 for n in equation (2) on page A17.When 2θ is small, an oil film cannot be formed easily between the contact surfaces of the raceway and the rolling elements. This may cause fretting corrosion. In this case, please consult IKO.

2θ

Fig. 3 Oscillating motion

Corrected rating life

When a rolling bearing is used in ordinary applica-tions, the basic rating life can be calculated by equa-tions (1) and (2) mentioned previously.This basic rating life applies to bearings which require a reliability of 90%, have ordinary bearing properties being made of materials of ordinary quality for rolling bearings, and are used under ordinary operating con-ditions.In some applications, however, it is necessary to obtain a rating life that applies to bearings which require high reliability, have special bearing properties or are used under special operating conditions. The corrected rating life for these special cases can be obtained from the following equation by using the

bearing life adjustment factors a1, a2 and a3, respec-tively.

　　　Lna＝ a1a2a3L10 …………………………… (6)

　　where,　Lna：Corrected rating life,　106 rev. a1 ： Life adjustment factor for reliability

a2 ： Life adjustment factor for special bearing properties

a3 ： Life adjustment factor for operat-ing conditions

Life adjustment factor for reliability　a1

The reliability of rolling bearings is defined as the pro-portion of bearings having a life equal to or greater than a certain specified value when a group of identi-cal bearings are operated under identical conditions. With respect to individual bearings, it refers to the probability of the life of a bearing being equal to or greater than a certain specified value.

The corrected rating life for a reliability of (100-n)% can be obtained using equation (6). Table 2 shows

the values of the life adjustment factor a1 for various reliabilities.

Table 2 Life adjustment factor for reliability a1

909596979899

L10L5L4L3L2L1

10.620.530.440.330.21

Reliability　% Ln a1

Life adjustment factor for special bearing properties　a2

The bearing life is extended or shortened according to the quality of the material, the manufacturing technol-ogy of the bearing and its internal design. For these special bearing life properties, the life is corrected by the life adjustment factor for special bearing proper-

ties a2.The table of dimensions for IKO Bearings shows the values of the basic dynamic load rating which are determined taking into consideration the fact that bearing life has been extended by improved quality of materials and advances in manufacturing technolo-gies. Therefore, the bearing life is calculated using

equation (6) usually assuming a2 = 1.

Life adjustment factor for operating conditions　a3

This factor helps take into account the effects of oper-ating conditions, especially lubrication on the bearing.The bearing life is limited by the phenomenon of fatigue which occurs, in general, beneath surfaces subjected to repeated stresses. Under good lubrica-tion conditions where the rolling element and raceway surfaces are completely separated by an oil film and

surface damage can be disregarded, a3 is set to be 1. However, when conditions of lubrication are not good, namely, when the viscosity of the lubricating oil is low or the peripheral speed of the rolling elements is

especially low, and so on, a3< 1 is used.On the other hand, when lubrication is especially

good, a value of a3 > 1 can be used. When lubrica-tion is not good and a3 < 1 is used, the life adjustment factor a2 cannot generally exceed 1.

When selecting a bearing according to the basic dynamic load rating, it is recommended that a suitable

value for reliability factor a1 is chosen for each appli-cation. The selection should be made using the

(C/P) or fh values determined by machine type and based upon the actual conditions of lubrication, tem-perature, mounting, etc., which have already been experienced and observed in the same type of machines.

Limiting conditions

These bearing life equations are applicable only when the bearing is mounted and lubricated normally with-out intrusion of foreign materials and not used under extreme operating conditions.Unless these conditions are satisfied, the life may be shortened. For example, it is necessary to separately consider the effects of bearing mounting errors, excessive deformation of housing and shaft, centrifu-gal force acting on rolling elements at high-speed rev-olution, excessive preload, especially large radial internal clearance of radial bearings, etc.When the dynamic equivalent load exceeds 1/2 of the basic dynamic load rating, the life equations may not be applicable.

CP（）

p90θ

Correction of basic dynamic load rating for temperature and hardness

Temperature factor

The operating temperature for each bearing is deter-mined according to its material and structure. If spe-cial heat treatment is performed, bearings can be used at temperatures higher than +150°C. As the allowable contact stress gradually decreases when the bearing temperature exceeds 150°C, the basic dynamic load rating is lowered and can be obtained by the following equation:

　　　C t ＝ f t C …………………………………… (7)

　　where,　C t ： Basic dynamic load rating

considering temperature rise, 　N f t ： Temperature factor (See Fig. 4.)

C ： Basic dynamic load rating, 　N

Temperature

°C 150 200 250

0.750.80.850.90.951.0ft

Fig. 4 Temperature factor

Further, if the bearing is used at high temperature, i.e. 120°C or above, the amount of dimensional displace-ment gets larger. So special heat treatment is neces-sary. If needed, please contact IKO.

Hardness factor

When the shaft or housing is used as the raceway surface instead of the inner or outer ring, the surface hardness of the part used as the raceway surface should be 58〜 64HRC.If it is less than 58HRC, the basic dynamic load rating is lowered and can be obtained by the following equation:

　　　CH ＝ f H C…………………………………… (8)

　　where, CH ： Basic dynamic load rating

considering hardness, 　N fH ： Hardness factor (See Fig. 5.)

C ： Basic dynamic load rating　N

Hardness of raceway surface

HRC 60 50 40 30 20

0.10.20.41 0.8 0.6fH

Fig. 5 Hardness factor


The loads acting on bearings include the weight of the machine parts supported by the bearings, the weight of the rotating body, loads produced when operating the machine, loads by belts or gears transmitting power, and various other loads.These loads can be divided into radial loads perpen-dicular to the central axis of the bearings and axial loads parallel to the central axis, and they act inde-pendently or in combination with other loads. In addi-tion, the magnitude of vibration or shocks on the bear-ings varies depending on the application of the machine. Thus, theoretically calculated loads may not always be accurate and have to be corrected by multiplying various empirical factors to obtain the actual bearing loads.

Load distribution to bearings

Table 5 shows examples of calculations where static loads are acting in radial direction.

Load factor

Although radial loads and axial loads can be obtained by calculation, it is not unusual for the actual bearing loads to exceed the calculated loads, due to vibration and shocks produced when operating the machine. The actual bearing load is obtained from the following equation, by multiplying the calculated load by the load factor:

　　　F＝ fw Fc ……………………………………(10)

　　where,　F ：Bearing load,　N fw ：Load factor (See Table 6.)

Fc ：Theoretically calculated load, 　N

Table 6 Load factor

Smooth operation without shocks

Electric motors, Air conditioning equipment, Measuring instruments, Machine tools

Reduction gearboxes, Vehicles, Textile machinery, Paper making machinery

Rolling mills, Rock crushers, Construc-tion machinery

Ordinary operation

Operation subjected to vibration and shocks

1 〜 1.2

1.2〜 1.5

1.5〜 3

Operating conditions Example fw

Basic Static Load Rating andStatic Safety Factor

Calculation of Bearing Loads

Basic static load rating

When a bearing at rest sustains a heavy load or a bearing rotating at a relatively low speed receives a heavy shock load, the contact stress may exceed a certain limiting value, producing a local permanent deformation in the raceways or the rolling elements, and subsequently causing noise or vibration or lower-ing the rotating performance. The basic static load rating is, therefore, determined as a guideline for the maximum allowable load for the bearing at rest, under which the permanent deformation will not exceed a certain limit value, and the lowering of the rotating performance will not occur. Its definition is given as follows.The basic static load rating is the static load that gives the contact stress shown in Table 3 at the center of the contact area of the rolling element and the race-way receiving the maximum load. A radial load con-stant in direction and magnitude is used in the case of radial bearings, while an axial load constant in magni-tude acting along the bearing central axis is used in the case of thrust bearings.

Table 3

Roller bearings


Other ball bearings

4 000

4 600

4 200

Type of bearing Contact stress MPa

Static safety factor

The basic static load rating gives the theoretical allow-able limit of the static equivalent load. Normally, this limit is corrected by considering the operating condi-tions and the requirements for the bearing. The cor-

rection factor, namely, the static safety factor f s is defined as in the following equation and its general values are shown in Table 4.

　　　f s＝　　 ………………………………………(9)

　　where, C0 ： Basic static load rating,　N P0 ： Static equivalent load, 　N

Table 4 Static safety factor

When high rotational accuracy is required

For ordinary operation conditions

For ordinary operation conditions not requiring very smooth rotation When there is almost no rotation

≧ 3

≧ 1.5

≧ 1

Operating conditions of the bearing f s

In case of Shell Type Needle Roller Bearings of which outer ring is drawn from a thin steel plate and then carburized and quenched, it is necessary to use a sta-tic safety factor of 3 or more.

C0P0

Table 5 Load distribution to bearings

F r1=dK r1＋ bK r2

f

Fr1=

Fr2=

gK r1＋ bK r2− cK r3f

aK r2＋ dK r3− eK r1f

F r2=cK r1＋ aK r2

f

Example Bearing load

a b

c d

f

Fr1Kr1 Kr2

Fr2

d

a b c

e f

g

Kr1 Kr2 Kr3Fr1 Fr2

A

B

C

D

E

F

G

H

I

J

K

L

M


Bearing loads in case of belt or chain transmission

When power is transmitted by a belt or chain, the load acting on the pulley or sprocket wheel is obtained from the following equations:

　　　T=9550000　　 ……………………………(11)

　　　K t=　　 ……………………………………(12)

　　where, T ： Torque acting on pulley or sprocket

wheel, 　N-mm K t ：Effective transmitting force of belt or chain,　N H ：Transmitting power,　kW n ：Rotational speed,　min-1

R ： Ef fec t i ve rad ius o f pu l l ey o r

sprocket wheel,　mm

For belt transmission, the load K r acting on the pulley shaft is obtained from the following equation, multiply-

ing the effective transmitting force K t by the belt factor fb shown in Table 7.

　　K r = fb K t ………………………………………(13)

Table 7 Belt factor

V-belts

Timing belts

Plain belts (with tension pulley)

Plain belts

2 〜 2.5

1.3〜 2

2.5〜 3

4 〜 5

Type of belt fb

In the case of chain transmission, a value of 1.2 to 1.5

is taken as the chain factor corresponding to fb. The

load acting on the sprocket wheel shaft is obtained from equation (13) in the same manner as the belt transmission.

Bearing loads in case of gear transmission

When power is transmitted by gears, the force acting on the gears varies according to the type of gear. Spur gears produce radial loads only, but helical gears, bevel gears and worm gears produce axial loads in addition to radial loads. Taking the simplest case of spur gears as an example, the bearing load is obtained from the following equations:

　　　T=9550000　　 ……………………………(14)

　　　K t=　　 ……………………………………(15)

　　　K s=K t tan θ ………………………………(16)

　　　K c= K t ＋K s =K t sec θ …………………(17)

　　 where, T：Torque applied to gear,　N-mm 　K t：Tangential force acting on gear,　N 　Ks：Radial force acting on gear,　N 　K c：Resultant normal force on gear tooth surface,　N 　H：Transmitting power,　kW 　n ：Rotational speed,　min-1

　R：Pitch circle radius of drive gear,　mm 　θ：Pressure angle of gear,　deg.

Kt

Ks R

Fig. 6

In this case, the resultant normal force on the tooth surface acts as the radial force to the shaft and the magnitude of vibration or shocks varies depending on the accuracy and sur face f in ish of the gear. Therefore, the radial load K r applied to the shaft is obtained from the following equation, multiplying the

resultant normal force Kc on gear tooth surface by the gear factor fz shown in Table 8.

　　　K r= f z K c ……………………………………(18)

Table 8 Gear factor

Precision gears (Pitch error and form error: Less than 0.02mm)

1.05〜 1.1

Ordinary machined gears(Pitch error and form error: 0.02 〜 0.1mm)

1.1 〜 1.3

Type of gear f z

Hn

TR

Hn

TR

2 2√

Mean equivalent load corresponding to fluctuating load

When the load applied to the bearing fluctuates, the bearing life is calculated by using the mean equivalent

load Fm, which is a constant load that will give the bearing a life equal to that produced under the fluctu-ating load. The mean equivalent load is obtained from the following equation:

　　 ……………………(19)

　　where,　Fm：Mean equivalent load,　N 　 N ：Total number of revolutions,　rev. 　 Fn：Fluctuating load,　N 　 p ： Exponent, Roller bearing = 10/3 Ball bearing = 3

Table 9 shows examples of the calculation of mean equivalent loads for various fluctuating loads.

Fm= ∫ Fn dN1N

N

0

pp

Table 9 Mean equivalent load for the fluctuation load

p

Type of fluctuating load Mean equivalent load　Fm

Step load

Monotonously changing load

Sinusoidally fluctuating load

Stationary load plus rotating load

where,　N1：Total number of revolutions under load F1 rev.　　　　N2：Total number of revolutions under load F2 rev. 　　　　Nn：Total number of revolutions under load Fn rev.

where,　Fmax：Maximum value of fluctuating load,　N　　　　Fmin ：Minimum value of fluctuating load,　N

　Fm ≒ 0.65Fmax

　Fm ≒ 0.75Fmax

where,　FS：Stationary load,　N　　　　FR：Rotating load,　N

Fm = (F1 N1 ＋ F2 N2 ＋…＋ Fn Nn)1N

p p pp

Fm = (2Fmax ＋ Fmin )13

Fm =FS ＋ FR − FS FR

FS＋ FR

F1

F2

N1 N2

NNn

Fm

Fn

F

F

Fmin

Fmax

Fm

N

Fmax

Fm

N

F

FmaxFm

N

F

Fs

FR

A

B

C

D

E

F

G

H

I

J

K

L

M


Boundary Dimensions and Identification Number

Equivalent load

The loads applied to the bearing are divided into radi-al loads that are applied perpendicular to the central axis and axial loads that are applied in parallel to the central axis. These loads act independently or in com-bination with other loads.

Dynamic equivalent load

When both radial load and axial load are applied to the bearing simultaneously, the virtual load, acting on the center of the bearing, that will give a life equal to that under the radial load and the axial load is defined as a dynamic equivalent load.In the case of needle roller bearings, radial bearings receive only radial loads and thrust bearings receive only axial loads. Accordingly, radial loads are directly used in the life calculation of the radial bearings, while axial loads are directly used for the thrust bearings.

[For radial bearings]

　　　P r =F r ………………………………………(20)[For thrust bearings]

　　　P a=F a ………………………………………(21)

　　where,　P r：Dynamic equivalent radial load,　N　　　　　　Pa：Dynamic equivalent axial load,　N　　　　　　F r：Radial load,　N　　　　　　F a：Axial load,　N

Static equivalent load

When both radial load and axial load are applied to the bearing simultaneously, the virtual load, acting on the center of the bearing, that will produce a maxi-mum contact stress on the contact surface between the rolling element and the raceway equal to that given by the radial load and the axial load is defined as a static equivalent load. In the case of needle roller bearings, radial bearings receive only radial loads and thrust bearings receive only axial loads. Accordingly, radial loads are directly used for the radial bearings, while axial loads are directly used for the thrust bearings.

[For radial bearings]

　　　P0r =F r………………………………………(22)[For thrust bearings]

　　　P0a=Fa ………………………………………(23)

　　where,　P0r：Static equivalent radial load,　N　　　　　　P0a：Static equivalent axial load,　N　　　　　　F r ：Radial load,　N　　　　　　F a ：Axial load,　N

Boundary dimensions

Examples of symbols for quantities indicating the boundary dimensions of IKO Needle Roller Bearings are shown below. For details, see the table of dimen-sions for each model.

Machined Type Needle Roller Bearing

　d ： Nominal bearing bore diameter

　D ： Nominal bearing outside diameter

　B ： Nominal inner ring width

　C ： Nominal outer ring width

　Fw ： Nominal roller set bore diameter

　r ： Chamfer dimensions of inner and outer rings

　r s min ： Smal lest permissible s ingle chamfer dimensions of inner and outer rings

BC

D d

r

r

r

r

Fw

Fig. 7 Machined Type Needle Roller Bearing

Shell Type Needle Roller Bearing

　D ：Nominal bearing outside diameter

　Fw：Nominal roller set bore diameter

　C ：Nominal outer ring width　

C

D Fw

Fig. 8 Shell Type Needle Roller Bearing

Needle Roller Cage

　Ew：Nominal roller set outside diameter

　Fw：Nominal roller set bore diameter

　B c：Nominal cage width

Bc

Ew Fw

Fig. 9 Needle Roller Cage

Thrust Roller Bearing

　D c：Nominal cage outside diameter

　d c：Nominal cage bore diameter

　Dw：Nominal roller diameter

Dw

Dc

dc

Fig. 10 Thrust Roller Bearing

A

B

C

D

E

F

G

H

I

J

K

L

M

A

B

C

D

E

F

G

H

I

J

K

L

M


Note(1)　The nominal dimensions of inch series bearings are indicated in units of 1/16 inch.

Model code






Roller Bearings

Thrust Bearings


Cam Followers

Roller Followers


Spherical Bushings

PILLOBALLs

L-Balls

Seals for Needle Roller Bearings

Cir-clips for Needle Roller Bearings

Roller set bore diameter + Outer ring width

Roller set bore diameter + Outer ring width (1)

Roller set bore diameter + Roller set outside diameter + Cage width

Roller set bore diameter + Roller set outside diameter + Cage width

Dimension series + Bore diameter number

Roller set bore diameter + Bearing outside diameter + Bearing width

Bearing bore diameter + Bearing outside diameter + Outer ring width

Roller set bore diameter + Bearing outside diameter + Bearing width (1)

Bearing bore diameter + Bearing outside diameter + Outer ring width (1)

Roller set bore diameter + Bearing outside diameter + Bearing width

Bearing bore diameter + Bearing outside diameter + Bearing width

Dimension series + Bore diameter number

Bearing bore diameter + Bearing outside diameter + Bearing width

Bearing bore diameter + Bearing outside diameter

Bearing bore diameter + Bearing outside diameter + Bearing height

Bearing bore diameter + Bearing outside diameter + Roller diameter

Roller set bore diameter + Assembled bearing width

Inner ring bore diameter + Assembled bearing width

Dimensional series + Bore diameter number

Stud diameter

Bearing outside diameter

Bearing outside diameter (1)

Bearing bore diameter

Bearing outside diameter (1)

Bearing bore diameter + Bearing width

Inner ring bore diameter

Inner ring bore diameter (1)

Inner ring bore diameter

Screw size

Shaft diameter + Seal outside diameter + Seal width

Shaft diameter

Bore diameter

Bearing typeModel number

Indication of boundary dimensions

8 Classification symbol

(None)

P6

P5

P4

JIS Class 0

JIS Class 6

JIS Class 5

JIS Class 4

Symbol Descriptions

Table 11 Indication of boundary dimensions

Identification Number

The identification number of IKO Bearings consists of a model number and supplemental codes. The descriptions of typical codes and their arrangements are shown below. There are many codes other than those described. See the section of identification number of each bearing.

Table 10 Arrangement of identification number of bearing

1

2

3

4

5

6

7

8

Model code

Boundary dimensions

Material symbol

Cage symbol

Shield symbol Seal symbol,

Bearing ring shape symbol

Clearance symbol

Classification symbol

Model number

Supplemental code

Model codeThe model code represents the bearing series. The features of each bearing series are shown on pages A5 to A15.

Boundary dimensionsOne of the following four kinds of presentation meth-ods is used for showing boundary dimensions in the identification number, which vary depending on the bearing series. Table 11 shows the presentation methods of boundary dimensions for each model code.

　(a)Dimension series + Bore diameter number

　(b) Bore diameter or roller set bore diameter + Outside diameter or roller set outside diameter +

Width

　(c)Bore diameter or roller set bore diameter + Width

　(d)Basic diameter

Material symbol

F Stainless steel for bearing rings and rolling elements

Symbol Type of material

Cage symbol

N

V

Made of synthetic resin

No cage or full complement

Symbol Descriptions

Seal or shield symbol

Z

ZZ

U

UU

S(1)

2RS

With dust cover

With shields on both sides

With a seal on one side

With seals on both sides

With ThrustDisk SealsTM


Symbol Descriptions

Note(1)　ThrustDisk SealsTM are embedded on both sides.

Bearing ring shape symbol

NR

OH (1)

J

With stop ring on outer surface of outer ring

With oil hole in bearing ring

No oil hole

Symbol Descriptions

Note(1)　This differs depending on the type of bearing. See the section of each bearing.

Clearance symbol

C2

(None)

C3

C4

C5

T1

C1

C2

C2 clearance

CN clearance

C3 clearance

C4 clearance

C5 clearance

Special radial clearance(Applicable to Crossed Roller Bearings)

Symbol Descriptions

1

2

3

4

5

6

7

TA，TLA，YT，YTL

BA，BHA，YB，YBH

KT，KTW

KT…EG，KTV…EG

NA，RNA

TR，TAF，GTR

TRI，TAFI，GTRI

BR

BRI

RNAF，RNAFW

NAF，NAFW

NAU，NAG，NAS

TRU

NTB，AS，WS，GS

AZ

AZK

NAX，NBX

NAXI，NBXI

NATA，NATB

CF…B，CFS，NUCF…B

CFKR

CR…B，CR，CRH…B

NAST，NART，NURT

CRY

CRBHV，CRBFV，CRBC，CRB，CRBT，CRBTF，CRBS

SB…A，GE

SBB

PB,PHS,POS,PHSB,POSB,PHSA

LHSA，LHS

OS，DS

WR

AR

A29 A30

A

B

C

D

E

F

G

H

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J

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Model number

NA 02 C2 P649

Example of identification number

Bore diameter number

Dimension series

Model code

Clearance symbol


(a) Example of "Dimension series + Bore diameter number"

Model number

NAX 30 Z20

Roller set bore diameter

Model code

Assembled bearing width

Shield symbol

(c) Example of "Bore diameter or roller set bore diameter + width"

Model number

CF V UU10 B

Cage symbol

Shape of stud head

Basic diameter (Stud diameter)

Model code

Seal symbol

Model number

KT 8 N5 8

Roller set outside diameter


Model code

Cage symbol

Cage width

(b) Example of "Bore diameter or roller set bore diameter + Outside diameter or roller set outside diameter + width"

(d) Example of "Basic diameter"

Supplementalcode

Supplementalcode

Supplementalcode

Supplementalcode

AccuracyThe accuracy of IKO Needle Roller Bearings con-

forms to JIS B 1514-1~-3 (Rolling bearings - Tolerances of bearings), and the dimensional accura-cy and rotational accuracy are specified. The speci-fied items are shown in Fig. 11.Needle Roller Bearings are classified into 4 classes of accuracy. These classes are represented by the numbers 0, 6, 5 and 4, written in order of increasing accuracy.Table 12 shows the accuracy for the inner rings of radial bearings, Table 13 shows the accuracy for the outer rings of radial bearings, Table 14 shows the tol-erances for the smallest single roller set bore diame-ter of radial bearings, and Table 15 shows the permis-sible limit values of chamfer dimensions of radial bearings. For thrust bearings, see the section on accuracy of Thrust Bearings. Note that the series of Shell Type Needle Roller Bearings, Roller Bearings, Cam Followers, Roller Followers, Combined Type Needle Roller Bearings, and Crossed Roller Bearings have special accuracy. For further details, see the section on accuracy of each bearing series.

RemarksThe meanings of the new symbols for quantities

used for accuracy of radial bearings are as

follows:

①∆ represents the deviation of a dimension from the specified value.

② V represents the variation of a dimension.

③ Suffixes s, m, and p represent a single (or

actual) measurement, a mean measurement,

and a measurement in a single radial plane,

respectively.

[Example] Vdp means the difference between

the largest and the smallest of the bore

diameters in a single radial plane (circularity).

Vdmp means the difference between the largest

and the smallest of the single plane mean bore

diameters (cylindricity).

Deviation of boundary dimensions

Accuracy of boundary dimensions

Rotationalaccuracy

Accuracy of bearings

Variation of boundary dimensions

Fig. 11 Accuracy of bearings

Single bore diameter deviation ∆ ds

Single plane mean bore diameter deviation ∆ dmp

Single outside diameter deviation ∆Ds

Single plane mean outside diameter deviation ∆Dmp

Deviation of a single inner ring width ∆Bs

Deviation of a single outer ring width ∆Cs

Bore diameter variation in a single radial plane Vdsp

Mean bore diameter variation Vdmp

Outside diameter variation in a single radial plane VDsp

Mean outside diameter variation VDmp

Inner ring width variation VBs

Outer ring width variation VCs

Radial runout of assembled bearing inner ring Kia

Assembled bearing inner ring face runout with raceway Sia

Inner ring reference face runout with bore Sd

Radial runout of assembled bearing outer ring Kea

Assembled bearing outer ring face runout with raceway Sea

Variation of outside surface generatrix inclination with outer ring reference face SD


A

B

C

D

E

F

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Table 12 Tolerances for inner ring

dNominal bearing

bore diameter

mm

∆ dmpSingle plane mean bore diameter deviation

∆ dsSingle bore

diameter deviation

VdspBore diameter variation in a single radial plane

VdmpMean bore diameter

variation

Diameter series 8, 9(1) Diameter series 0(2)

Over Incl. High HighLow High High High

Class 0 Class 6 Class 5 Class 4 Class 4 Class4

Class5

Class6

Class0

Class0

Class0

Class6

Class6

Class5

Class5

Class4

Class4

Low Low Low Low Max. Max. Max.

2.5 10 18

30 50 80

120 180 250

315 400 500

630 8001000

12501600

101830

5080

120

180250315

400 500 630

80010001250

16002000

000

000

000

000

000

00

000

000

000

000

- 7- 7- 8

- 10- 12- 15

- 18- 22- 25

- 30- 35- 40

- 5- 5- 6

- 8- 9- 10

- 13- 15- 18

- 23

- 4- 4- 5

- 6- 7- 8

- 10- 12

- 4- 4- 5

- 6- 7- 8

- 10- 12

000

000

000

0

000

000

00

000

000

00

101013

151925

313844

505663

9 910

131519

232831

384450

5 5 6

8 910

131518

23

4 4 5

6 7 8

1012

8 810

121925

313844

505663

7 7 8

101519

232831

384450

4 4 5

6 7 8

101214

18

334

556

89

6 6 8

91115

192326

303438

5 5 6

8 911

141719

232630

3 3 3

4 5 5

7 8 9

12

222.5

33.54

56

- 8- 8- 10

- 12- 15- 20

- 25- 30- 35

- 40- 45- 50

- 75- 100- 125

- 160- 200

Note(1)　Applicable to all series except NAS series(2)　Applicable to NAS series(3)　Applicable to NATA and NATB series

dNominal bearing

bore diameter

mm

∆ BsDeviation of a single inner ring width

SdInner ring

reference face runout with bore

S ia(3)Assembled bearing

inner ring face runout with raceway

VBsInner ring width variation

Over Incl.High Low High High High

Class 0 Class 6 Class 5 Class 4Class

5Class

4Class

5Class

4Class

0Class

6Class

5Class

4Low Low LowMax. Max. Max.

2.5 10 18

30 50 80

120 180 250

315 400 500

630 8001000

12501600

101830

5080

120

180250315

400 500 630

80010001250

16002000

000

000

000

000

000

00

000

000

000

000

- 120- 120- 120

- 120- 150- 200

- 250- 300- 350

- 400- 450- 500

- 40- 80- 120

- 120- 150- 200

- 250- 300- 350

- 400

- 40- 80- 120

- 120- 150- 200

- 250- 300

000

000

000

0

000

000

00

7 7 8

8 8 9

101113

15

334

455

67

7 7 8

8 8 9

101315

20

334

455

78

152020

202525

303035

405060

7080

100

120140

152020

202525

303035

404550

5 5 5

5 6 7

81013

15

2.52.52.5

344

56

- 120- 120- 120

- 120- 150- 200

- 250- 300- 350

- 400- 450- 500

- 750- 1000- 1250

- 1600- 2000

unit: μ m

K iaRadial runout of

assembled bearing inner ring

Max.

101013

152025

304050

606570

8090

100

120140

6 7 8

101013

182025

303540

4 4 4

5 5 6

81013

15

2.52.53

445

68

Class 0

Class 6

Class 5

Class 4

Table 13 Tolerances for outer ring

DNominal bearing outside diameter

mm

∆ DmpSingle plane mean outside diameter deviation

∆ DsSingle out-side diam-eter devia-

tion

VDsp(1)

Outside diameter variation in a single radial plane

Diameter series 8, 9(2)Open bearing

Diameter series 0(3) Diameter series 0(3)Bearing with seal or shield

Over Incl. High HighLow High High High

Class 0 Class 6 Class 5 Class 4 Class 4 Class 6Class 4

Class 5

Class 6

Class 0

Class 4

Class 5

Class 6

Class 0

Low Low Low Low Max. Max. Max.

2.5 6 18

30 50 80

120 150 180

250 315 400

500 630 800

1000125016002000

61830

5080

120

150180250

315 400 500

630800

1000

1250160020002500

000

000

000

000

000

0000

000

000

000

000

000

- 7- 7- 8

- 9- 11- 13

- 15- 18- 20

- 25- 28- 33

- 38- 45- 60

- 5- 5- 6

- 7- 9- 10

- 11- 13- 15

- 18- 20- 23

- 28- 35

- 4- 4- 5

- 6- 7- 8

- 9- 10- 11

- 13- 15

- 4- 4- 5

- 6- 7- 8

- 9- 10- 11

- 13- 15

000

000

000

000

00

000

000

000

00

000

000

000

00

101012

141619

233138

445056

6394

125

9 910

111416

192325

313541

485675

5 5 6

7 910

111315

182023

2835

8 8 9

111319

233138

445056

6394

125

4 4 5

6 7 8

91011

1315

7 7 8

91116

192325

313541

485675

4 4 5

5 7 8

81011

141517

2126

3 3 4

5 5 6

7 8 8

1011

9 910

131620

2530

- 8- 8- 9

- 11- 13- 15

- 18- 25- 30

- 35- 40- 45

- 50- 75- 100

- 125- 160- 200- 250

Note(1)　Classes 0 and 6 are applicable to outer rings without stop rings.(2)　Applicable to all series except NAS series(3)　Applicable to NAS series(4)　Applicable to NATA and NATB series

DNominal bearing outside diameter

mm

S DVariation of outside surface generatrix

inclination with outer ring reference face

S ea(4)

Assembled bearing outer

ring face runout with raceway

∆ CsDeviation of a single outer ring width

KeaRadial runout of

assembled bearing outer ring

VCsOuter ring width variation

Over Incl.High Low

Class 0

Class 6

Class 5

Class 4

Class 5 Class 4 Class 5 Class 4 Class 0, 6, 5, 4 Class 6Class 0 Class 5 Class 4

Max. Max. Max. Max.

2.5 6 18

30 50 80

120 150 180

250 315 400

500 630 800

1000125016002000

61830

5080

120

150180250

315 400 500

630800

1000

1250160020002500

151515

202535

404550

607080

100120140

160190220250

8 8 8

8 8 9

101011

131315

1820

8 8 9

101318

202325

303540

506075

4 4 4

4 4 5

5 5 7

810

5 5 6

7 810

111315

182023

2530

8 8 8

81011

131415

182023

2530

3 3 4

5 5 6

7 810

1113

5 5 5

5 5 6

7 810

1013

Same as the tolerance values of ∆ Bs for d of the same bearing

Same as the tolerance values of VBs for d of the same bearing

5 5 5

5 6 8

8 810

111315

1820

2.52.52.5

2.534

557

78

unit: μ m

VDmpMean outside diameter variation

Class 0

Class 6

Class 5

Class 4

Max.

6 6 7

81011

141923

263034

385575

5 5 6

7 810

111415

192125

293445

3 3 3

4 5 5

6 7 8

91012

1418

222.5

33.54

556

78


A

B

C

D

E

F

G

H

I

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L

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Methods of Measurement

Measurement of IKO Needle Roller Bearings is based on JIS B 1515-1, -2 (Roll ing bearings-Tolerances). Tables 16 and 17 show some examples of the methods.Special methods are used to measure Shell Type Needle Roller Bearings. Therefore, refer to the sec-tion on accuracy for these bearings on page B3.

Table 14 Tolerances for smallest single roller set bore diameter Fws min(1) unit: μm

3 6 10 18 30 50 80120180250315400

6 10 18 30 50 80120180250315400500

＋ 18 ＋ 22＋ 27＋ 33＋ 41＋ 49＋ 58＋ 68＋ 79＋ 88＋ 98＋ 108

＋ 10＋ 13＋ 16＋ 20＋ 25＋ 30＋ 36＋ 43＋ 50＋ 56＋ 62＋ 68

FwNominal roller set bore diameter

mm

Over Incl. High Low

∆ Fws minDeviation of smallest single roller set bore diameter

Note(1)　This is the diameter of the cylinder used instead of the inner ring, where the radial clearance becomes 0 at least in one radial direction.

Measurement methods Accuracy and definitions

Single bore diameter

Zero the gauge indicator to the appropri-ate size using gauge blocks or a master ring.In several angular directions and in a sin-gle radial plane, measure and record the largest and the smallest single bore diam-eters, d sp max and d sp min, within the mea-suring zone (excluding the zone 1.2 times the respective maximum allowable cham-fer dimensions of the inner ring face).Repeat angular measurements and record-ings in several radial planes to determine the largest and the smallest single bore diameter, d s max and d s min.

1.2r

s max

1.2r

s max

dmpMean bore diameter

in a single plane

∆ dmp

Deviation of mean bore diameter in a single

plane

VdspVariation of bore diameter

in a single plane

VdmpVariation of mean

bore diameter

∆ ds

Deviation of a single bore diameter

Calculated mean value of the maximum and minimum values of the single bore diameter within a radial plane.

dmp ＝

d sp：Single bore diameter in a single plane

DmpMean outside

diameter in a single plane

Calculated mean value of the maximum and minimum values of the single outside diameter within a radial plane.

Dmp ＝

D sp：Single outside diameter in a single plane

Deviation of mean bore diameter in a single plane and nominal bore diameter.

∆ dmp ＝ dmp − dd： Nominal bearing bore diameter

Deviation of the maximum and minimum values of the single bore diameter within a radial plane.Vdsp ＝ d sp max − d sp min

Deviation of the maximum and minimum values of mean bore diameter in a single plane, for individual raceway rings with essentially cylindrical bore diameter surfaces.Vdmp ＝ dmp max − dmp min

Deviation of single bore diameter and nominal bore diameter.∆ ds ＝ d s − dd s：Single bore diameter (distance between two parallel straight lines touching

the intersection of the single bore diameter surface and the radial plane)

Single outside diameter

Zero the gauge indicator to the appropri-ate size using gauge blocks or a master.In several angular directions and in a sin-gle radial plane, measure and record the largest and the smallest single outside diameters, Dsp max and Dsp min, within the measuring zone (excluding the zone 1.2 times the respective maximum allowable chamfer dimensions of the outer ring face).Repeat and record measurements in sev-eral radial planes to determine the largest and the smallest single outside diameter, Ds max and Ds min.

1.2r

s max

1.2r

s max

d sp max＋ d sp min

2

∆ Dmp

Deviation of mean outside diameter in a single plane

VDspVariation of outside

diameter in a single plane

VDmpVariation of mean outside diameter

∆ Ds

Deviation of a single outside diameter

Deviation of mean outside diameter in a single plane and nominal outside diameter.∆ Dmp ＝ Dmp − DD：Nominal bearing outside diameter

Deviation of the maximum and minimum values of the single outside diameter within a radial plane.VDsp ＝ D sp max − D sp min

Deviation of the maximum and minimum values of mean outside diameter in a single plane, for individual raceway rings with essentially cylindrical outside diameter surfaces.VDmp ＝ Dmp max − Dmp min

Deviation of single outside diameter and nominal outside diameter.∆ Ds ＝ D s − DD s：Single outside diameter (distance between two

parallel straight lines touching the intersection of the single outside diameter surface and the radial plane)

D sp max ＋ D sp min

2

Table 16 Measurement methods of accuracy of boundary dimensions

Table 15 Permissible limit values for chamfer dimensions of radial bearings unit: mm

0.10.150.2

0.3

0.4（1）

0.6

1

1.1

1.5

2

2.1

2.5（1）

3

456

40

40

50

120

120

80220

280

100280

280

40

40

50

120

120

80220

280

100280

280

0.55（2） 0.6 （2） 0.7 （2） 0.8 （2） 0.8 0.8 1.1 （2） 1.3 1.5 1.9 2 2.5 2.3 3 3 3.5 3.8 4 4.5 3.8 4.5 5 5 5.5 6.5 810

0.55（2） 0.6 0.8 1 1 1.2 2 2 3 3 3.5 4 4 5 4.5 5 6 6.5 7 6 6 7 8 8 91013

r s minSmallest

permissible single chamfer dimension

dNominal bore diameter

r s maxLargest permissible single chamfer dimension

Note(1)　Not specified in JIS.(2)　The numeric value differs from JIS.

Remark 　Although the exact shape of the chamfer is not specified, its profile in the axial plane must not extend beyond the imaginary circular arc of radius rs min which is tangential to the inner ring side surface and bearing bore surface or to the outer ring side surface and bearing outside sur-face. (See Fig. 12.)

Over Incl. Radial direction Axial direction

Fig. 12 Permissible values for chamfer dimensions

(Rad

ial d

irect

ion)

(Axial direction)rs max

rs m

ax

rs min

rs min

rs m

inSi

de s

urfa

ce o

f in

ner r

ing

or

oute

r rin

g

Bearing bore or bearing outside surface


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Table 17 Measurement methods for rotational accuracy

Measurement methods Accuracy and definitions

Single bore diameter of rolling element complement

Fasten the master gauge to a surface plate.Position the bearing on the master gauge and apply the indicator in the radial direction near the middle of the width on the ring outside surface.Measure the amount of movement of the outer ring in the radial direction by applying sufficient load on the outer ring in the same radial direction as that of the indicator and in the opposite radial direction.Record indicator readings at the extreme radial posi-tions of the outer ring. Rotate the bearing and repeat the measurement in several different angular posi-tions to determine the largest and the smallest read-

ings, Fws max and Fws min.

Measuring load

Mastergauge

Fws

Single bore diameter of roller

complement

Fws min

Smallest single bore diameter of roller

complement

∆ Bs

Deviation of a single inner ring width

In radial bearings without inner rings, the distance between two parallel straight lines touching the intersection of the inscribed circle of roller complement and the radial plane.

In radial bearings without inner rings, the minimum value of the single bore diameter of roller complement.

Remark Diameter of a cylinder where the smallest single bore diameter of roller complement has zero radial clearance in at least one radial direction.

Deviation of single inner ring width and nominal inner ring width.

∆ Bs ＝ B s − B

VBsVariation of inner

ring width

Deviation of the maximum and minimum values of the single inner ring width for individual inner rings.

VBs ＝ B s max − B s min

∆ Cs

Deviation of a single outer ring width

Deviation of single outer ring width and nominal outer ring width.

∆ Cs ＝ C s − C

VCsVariation of outer

ring width

Deviation of the maximum and minimum values of the single outer ring width for individual outer rings.

VCs ＝ C s max − C s min

Outer ring width

Bearing height

Inner ring width

Zero the gauge indicator to the appropriate height from the reference surface using gauge blocks or a master.Support one face of the inner or outer ring on three equally spaced fixed supports of equal height and provide two suitable radial supports on the bore or outside surface set at 90° to each other to centre the inner or outer ring.Position the indicator against the other face of the ring opposite one fixed support.Rotate the inner or outer ring one revolution and measure and record the largest and the smallest single inner (outer) ring width, B s max and B s min, (C s max and C s min).

∆ Ts

Deviation of the actual bearing height

Deviation of actual bearing height and nominal bearing height of the thrust bearing.

∆ Ts ＝ T s − T

T s：Actual bearing heightT ：Nominal bearing height

Measurement methodsAccuracy

Sd

Perpendicularity of inner ring

face with respect to the

bore

SD

Perpendicularity of outer ring

outside surface with respect to

the face

K ia

Radial runout of inner ring of

assembled bearing

K ea

Radial runout of outer ring of

assembled bearing

S ia

Axial runout of inner ring of assembled

bearing

S ea

Axial runout of outer ring of assembled

bearing

Use a precision arbor having a taper of approximately 1 : 5 000 on diameter.Mount the bearing assembly on the tapered arbor and place the arbor between two centres so that it can be accurately rotated.Position the indicator against the reference face of the inner ring at a radi-al distance from the arbor axis of half the mean diameter of the face.Take indicator readings while rotating the inner ring one revolution.

Support the reference face of the outer ring on a surface plate leaving the inner ring, if an assembled bearing, free. Locate the outer ring cylindrical outside surface against two supports set at 90° to each other to centre the outer ring.Position the indicator directly above one support. The indicator and the two supports are axially located at the extremes of the measurement zone (positions 1.2 times the respective maximum allowable chamfer dimen-sions of the outer ring face).Take indicator readings while rotating the outer ring one revolution.

Use a precision arbor having a taper of approximately 1 : 5 000 on diameter.Mount the bearing assembly on the tapered arbor and place the arbor between two centres so that it can be accurately rotated.Position the indicator against the outside surface of the outer ring as close as possible to the middle of the outer ring raceway.Hold the outer ring to prevent rotation but ensure its weight is supported by the rolling elements. Take indicator readings while rotating the arbor one revolution.

Use a precision arbor having a taper of approximately 1 : 5 000 on diameter.Mount the bearing assembly on the tapered arbor and place the arbor between two centres so that it can be accurately rotated.Position the indicator against the outside surface of the outer ring as close as possible to the middle of the outer ring raceway.Hold the inner ring stationary. Take indicator readings while rotating the outer ring one revolution.

Support the reference face of the outer ring on a surface plate with a pilot for centering the outside diameter of the ring. Apply a dynamically stable coaxial load to the reference face of the inner ring in order to ensure con-tact between rolling elements and raceways.Position the indicator against the reference face of the inner ring and take indicator readings while rotating the inner ring one revolution.

Support the reference face of the inner ring on a surface plate with a pilot for centering in the bore of the inner ring. Apply a dynamically stable coaxial load to the reference face of the outer ring in order to ensure con-tact between rolling elements and raceways.Position the indicator against the reference face of the outer ring and take indicator readings while rotating the outer ring one revolution.

Support the bearing on a surface plate. Zero the

gauge indicator to an appropriate height from the sur-

face plate using gauge blocks or a master.

Place a plate of known thickness on the bearing

assembly, apply a dynamically stable coaxial load, and

position the indicator over the centre of the plate.

Rotate the housing washer several times, to be sure to

reach the smallest height, and take indicator readings.

Disk master

Stopper

1.2r

s max

1.2r

s max

Load on inner ring

Load on outer ring


A

B

C

D

E

F

G

H

I

J

K

L

M

Selection of clearance

Radial clearances of needle roller bearings change according to bearing fit, temperature difference between bearing rings and rolling elements, loads, etc., and these factors greatly influence bearing life, accuracy, noise, generation of heat, etc. If radial clearances are too large, noise and vibration will increase, and if they are too small, abnormally great forces are exerted on the contact areas between raceways and rolling elements, resulting in abnormal-ly high heat generation and a decrease in bearing life. Therefore, in the ideal case, the clearance provided before mounting should be such that it will become zero or slightly larger when the bearing has reached steady-state operation and the temperature has become constant (saturation temperature). However, it is difficult to achieve this ideal state for all bearings. Under general operating conditions, bearings with CN clearance are most widely used, and are manufac-tured to provide satisfactory performance when fitted according to Tables 21 and 22.When radial internal clearances other than CN are used, refer to Table 19.

The clearances between the bearing rings and rolling elements are known as bearing clearances. When either the inner or outer ring is fixed and a specified measuring load is applied to the free bearing ring inward and outward alternately in the radial direction, the displacement of the free bearing is referred to as the radial internal clearance. The amount of measur-ing load in this case is extremely small, and its values are specified in JIS B 1515-2 (Rolling bearings-Toler-ances-Part2:Measuring and gauging principles and methods).

Reduction of radial clearances by fit

When the inner or outer rings are interference fitted onto shafts and into housings, respectively, they expand or shrink due to elastic deformation. As the result, the radial clearances are reduced. These reduced radial clearances are called residual (inter-nal) clearances.The amount of reduction is obtained by the following equation, and it is generally 70 to 90% of the interfer-ence amount.

Table 19 Examples of selecting radial internal clearances other than CN clearance

Operating conditions Selection of clearance

When heavy loads and shock loads are applied, and amount of interference is great.

C3 or larger clearance

C2 or smaller clearance

When directionally indeterminate loads are applied, and a tight fit is required for both inner and outer rings.

When temperature of inner ring is much higher than that of outer ring.

When shaft deflection and/or mounting error to the housing are great.

When less noise and vibration are required. When a loose fit is required for both inner and outer rings. When preload is required.

　　　∆ C＝∆ F＋∆ E ………………………………(24)

　　where,　∆ C：Amount of reduction of the radial clearance, mm

　　　　　　∆ F：Amount of expansion of the out-side diameter of inner ring, mm

　　　　　　∆ E ：Amount of shrinkage of the bore diameter of outer ring, mm

1 Amount of expansion of the outside diameter of inner ring

・With solid shaft

　　　∆ F ＝∆ de ………………………………(25)

・With hollow shaft

　　　∆ F ＝∆ de　　　　　　　　　　　　　　　　 ……(26)

　　where,　∆ de ：Effective interference of inner ring, mm　　　　　　d　：Bore diameter of inner ring, mm　　　　　　F　：Outside diameter of inner ring, mm　　　　　　d i　：Bore diameter of hollow shaft, mm

2 Amount of shrinkage of the bore diameter of outer ring

・With steel housing（D0＝∞）

　　　∆ E＝∆ De　 ………………………………(27)

・With steel housing（D 0≠∞）

　　　∆ E＝∆ De　 ……(28)

　　where,　∆ De ：Effective interference of outer ring, mm　　　　　　D ：Outside diameter of outer ring, mm　　　　　　E ：Bore diameter of outer ring, mm　　　　　　D0 ：Outside diameter of housing, mm

Reduction of radial clearances due to temperature differences between inner and outer rings

Frictional heat generated by rotation is dissipated through the shafts and housings as well as through oil and air. Under general operating conditions, heat dis-sipation is larger on the housing side compared with that on the shaft side, and the temperature of the outer ring is usually lower than that of the inner ring. During operation, the temperature of the rolling ele-ments is the highest, followed by that of the inner ring and that of the outer ring. The amount of thermal expansion, therefore, varies, and the radial clearances are reduced. This reduced radial clearance is called the effective (internal) clearance, and the amount of reduction is obtained by the following equation:

dF

dF

1− (d i/d)2

1− (d/F)2 (d i/d)2

ED

ED

1− (D/D0)2

1− (E/D)2 (D/D0)2

1 Table 18 shows the radial internal clearances of Needle Roller Bearings with Inner Ring based on JIS B 1520 (Rolling bearings-Radial internal clearance). The radial internal clearances are classified into C2, CN, C3, C4, and C5, with clearances increasing in this order. CN is used under normal operating condi-tions. When a smaller range in radial internal clear-ance than the values shown in Table 18 is required, please consult IKO.

2 In the case of Shell Type Needle Roller Bearings, the correct dimensional accuracy is achieved only after the bearings are press-fitted into the specified housing bore. Therefore, the clearances shown in Table 18 are not applicable. See page B5.

3 For the radial internal clearances of Cam Followers, Roller Followers and Crossed Roller Bearings, see the relevant section for each bearing.

Clearance

10 24 30 40 50 65 80100120140160180200225250280315355400450

10 24 30 40 50 65 80100120140160180200225250280315355400450500

0 0 0 5 5

1010

15 1515

20 2535

45 4555

55 65

100110110

25 25 2530

35 4045

50 5560

70 7590

105110125130145190210220

20 20 2025

30 4040

50 5060

70 7590

105110125130145190210220

45 45 4550

60 7075

85 90

105120125145165175195205225280310330

35 35 3545

50 6065

75 85

100115120140160170190200225280310330

60 60 6070

80 90

100110125145165170195220235260275305370410440

50 50 5060

70 8090

105125145165170195220235260275305370410440

7575

75 85

100110125140165190215220250280300330350385460510550

65 7080

95110130155180200225250275305330370410455510565625

90 95

105125140165190220245275300330365395440485535600665735


mm

Classification of clearances

C2 CN C3 C4 C5

Remark 　For bearings with CN clearance, no symbol is attached to the identification number. In the case of bearings with C2, C3, C4 and C5 clearances, these symbols are attached to the identification number.

　　　　Example　NA　4905　C2

Table 18 Radial internal clearances of Needle Roller Bearings

Over Incl. Min. Max. Max. Max. Max. Max.Min. Min. Min. Min.

unit: μm


A

B

C

D

E

F

G

H

I

J

K

L

M

　　　∆δ＝α∆ t E …………………………………(29)

　　where, ∆δ ： Reduction of radial clearance, mm α ： Coefficient of linear expansion for

bearing steel

　　　　　　　　　　　　　 ≒ 12.5× 10-6 1/ °C ∆ t ： Temperature difference between the

outer ring and the inner ring plus rolling

elements considered as one unit, ° C E ： Bore diameter of outer ring, mm

The temperature difference ∆ t is considered to be 5〜 10°C under normal operating conditions and 15〜20 °C at high rotational speeds. Therefore, when the temperature difference is great, a correspondingly larger radial internal clearance must be selected.

FitPurpose of fit

To achieve the best performance of needle roller bearings, it is important that the bearing rings are cor-rectly fitted onto the shaft and into the housing.The purpose of fit is to provide the appropriate amount of interference required between the inner ring and the shaft or between the outer ring and the housing, to prevent harmful mutual slippage.If the interference is insufficient, it will cause a harmful relative displacement, known as creep, between the fitted surfaces in the circumferential direction. This may lead to abnormal wear of fitted surfaces, intru-sion of wear particles into the bearing, generation of abnormal heat, vibration, etc. Therefore, a suitable fit must be selected.

Conditions for determination of fit

When determining a suitable fit for a bearing, it is nec-essary to consider various conditions such as nature and magnitude of the load, temperature, required rotational accuracy, material/finish grade/thickness of the shaft and housing, ease of mounting and dis-mounting, etc.

1 Nature of load and fitBasically, the appropriate fit depends on whether the load direction is rotational or stationary in relation to the inner and outer rings.The relationship between the nature of radial loads and the fit is, in general, based on Table 20.

2 Load amount and interferenceThe greater the load, the larger the interference must be.When selecting an interference between the inner ring and the shaft, it is necessary to estimate the reduction of interference due to the radial load. The amount of reduction of interference is obtained by the following equations.

・When F r≦ 0.2C0

　　　∆ dF＝ 0.08 　 F r×10-3………………(30)

・When F r>0.2C0

　　　∆ dF＝0.02 ×10-3 ……………………(31)

　　where, F r ：Radial load applied to bearing, N C0 ：Basic static load rating, N ∆ dF ：Amount of reduction of inner

ring interference, mm d ：Bore diameter of inner ring, mm B ：Width of inner ring, mm

3 Temperature conditions and change of interferenceThe interference of fitted surfaces is also influenced by the temperature difference between the bearing and the shaft and housing. For example, when steam is flowing through a hollow shaft, or when the housing is made of light metal, it is necessary to take into con-sideration the differences in temperature, the coeffi-cient of linear expansion and other such factors.Usually, the interference of the inner ring decreases as the bearing temperature increases during opera-tion. If the temperature difference between the inside of the bearing and the outside of the housing is taken

dB

F rB

dd＋ 2

dd＋ 3

d＋ 2d

as ∆ T, the temperature difference between the inner ring and the shaft can be estimated to be (0.1〜 0.15)

∆ T. Accordingly, the amount of reduction of the inner ring interference is obtained by the following equation.

∆ dT＝ (0.1〜 0.15) ∆ Tαd≒ 0.0015 ∆ T d×10 -3 …(32)

　　where, ∆ dT ： Reduction amount of inner ring interference due to temperature

difference, mm ∆ T ： Temperature difference between

the inside of the bearing and the

outside of the housing, °C α ： Coefficient of linear expansion

for bearing steel

≒ 12.5×10-6 1/ °C d ： Bore diameter of inner ring, mm

4 Shaft finish grade and interferenceSince peaks of surface roughness of the fitted surface are crushed down when fitting the bearing, the effec-tive interference becomes smaller than the apparent interference obtained by measurements, and it is gen-erally obtained by the following equations.・For ground shaft

　　　∆ de＝　　　 ∆ d f …………………………(33)

・For machined shaft

　　　∆ de＝　　　 ∆ d f …………………………(34)

　　where, ∆ de ： Effective interference of inner ring, mm

d： Bore diameter of inner ring, mm ∆ d f ： Apparent interference, mm

5 Minimum interference and maximum interferenceWhen the load direction is rotating in relation to the inner ring, the inner ring is fitted with interference to the shaft. For solid ground steel shafts, the minimum interfer-

ence (required apparent in ter ference) ∆ d f is expressed by the following equation which is deduced from equations (30) or (31), (32) and (33).

　　∆ df ≧　　　 (∆ dF＋ 0.0015 ∆ T d×10 -3) …(35)

It is desired that the maximum interference should be less than 1/1000 of the shaft diameter. In the case of the outer ring, the effective interference varies accord-ing to the housing material, thickness, shape, etc., so it is determined empirically.

Table 20 Nature of radial load and fit

Nature of the loadFit

Inner ringRotating conditions Outer ring

Rotating load on inner ringStationary load on outer ring

Rotating load on outer ringStationary load on inner ring

Directionally indeterminate load

The load direction is not fixed, including cases where the load direction is fluctuat-ing or there is an unbal-anced load.

Inner ring : RotatingOuter ring : StationaryLoad direction : Fixed

Inner ring : StationaryOuter ring : RotatingLoad direction : Rotating with outer ring

Inner ring : StationaryOuter ring : RotatingLoad direction : Fixed

Inner ring : RotatingOuter ring : StationaryLoad direction : Rotating with inner ring

Inner ring : Rotating or stationaryOuter ring : Rotating or stationaryLoad direction : Not fixed

Interference fit

Clearance fit

Interference fit

Clearance fit

Interference fit

Interference fit


A

B

C

D

E

F

G

H

I

J

K

L

M

Selection of fit

When selecting a suitable fit, in addition to the various conditions mentioned above, it is necessary to draw on experience and practical results.Tables 21 and 22 show the most general fit data.When a thin housing or a hollow shaft is used, the interference is made larger than an ordinary fit.The fit between needle roller bearings without inner ring and shafts is based on Table 23.For the fit between Shell Type Needle Roller Bearings and housing bores, see page B5.For the fit between inner rings for Shell Type Needle Roller Bearings and shafts, see Table 22.

Table 21 Fit between needle roller bearings and housing bores (Not applicable to Shell Type Needle Roller Bearings)

Operating conditionsTolerance class of housing bore（1） Application examples (Reference)

Rotating load on outer ring

D i r e c t i o n a l l y i n d e t e r m i n a t e load

Stationary load on outer ring

Light load, normal load, requirements of high-precision rotation and high rigidity

Heavy load on thin housing, large shock load

Heavy load, normal load

Light load, fluctuating load

Large shock load

Heavy load, normal load

Normal load, light load

Shock load, heavy load

Normal load, light load

With heat conduction through shaft

P7（2）

N7（2）

M7

M7

K7

J7

J7

H7

G7

K6

Flywheels

Wheel bosses, transmission gears

Pulleys, tension pulleys

Eccentric wheels, pumps

Compressors

Crankshafts, compressors

General bearing applications, gear shafts

General bearing applications

Paper dryers

Main spindles of machine tools

Notes(1)　This table applies to steel or cast iron housings. For lighter metal, a tighter fit should be selected.For split housings, do not use a fit tighter than J7.

(2)　Care should be taken so that the radial internal clearance is not too small.Remark 　Light load, normal load and heavy load represent P≦ 0.06C, 0.06C<P≦ 0.12C, and 0.12C<P, respectively, where P is the

dynamic equivalent radial load and C is the basic dynamic load rating of the bearing to be used.

Table 22 Fit between needle roller bearings with inner ring and shafts

Operating conditionsShaft dia. mm

Over Incl.

Tolerance classof shaft（1）

Application examples (Reference)

Stationary load on inner ring

Light load, normal load, low or medium rotating speed

All shaft diameters

g6

h6

h5

Wheels on dead axles

Control lever gears

Rope sheaves

Tension pulleys

Electric appliances, Precision machinery

Machine tools, Pumps

Blowers, Transportation vehicles

General bearing applications

Pumps, Transmission gearboxes,

Wood working machinery, Internal combustion engines

Industrial vehicles, Construction machineryCrushers

−50100200

−50150200

−150

50100200−50

150200−

150−

j5k5m6（2）n6（3）

k5（4）m5，m6（2）n6（3）p6（3）

n6（3）p6（3）

Heavy load, medium rotating speed

Especially smooth operation and accuracy are required.

Light load

Normal load

Heavy loadShock load

Rotating load on inner ring or Direct ional ly indeterminate load

Notes(1)　This table applies to solid steel shafts.(2)　It is necessary to examine the reduction of radial internal clearances caused by the expansion of inner rings after mounting.(3)　It is necessary to use bearings with radial internal clearances greater than CN clearance.(4)　For NATA and NATB, do not use a tighter fit than k5.

Table 23 Tolerance class of shafts assembled with needle roller bearings without inner ring

Note(1)　When the housing bore fit is tighter than K7, the shaft diameter is made smaller by considering shrinkage of roller set bore diameter after mounting.


mm

Radial internal clearance

Smaller than CN clearance CN clearance Larger than CN clearance

Over Incl. Tolerance class of shaft（1）

　−6580

160180200

250315

6580

160

k5k5k5

k5j5j5

h5g5

h5h5g5

g5g5f6

f6f6

g6f6f6

e6e6e6

e6d6

180200250

315−


A

B

C

D

E

F

G

H

I

J

K

L

M

Design of Shaft and HousingAccuracy and roughness of shaft and housing

Accuracy and roughness of fitting surface

Since the bearing rings of needle roller bearings are thin, their performance is easily affected by poor accuracy of shafts or housings. Under general oper-ating conditions, the fitting surfaces of shafts and housings can be finished by lathe turning. However, when the load is great and high accuracy and low noise are required, a grinding finish is required.Table 26 shows the accuracy and roughness of fitting surfaces for general use.

Accuracy and roughness of raceway surface

In case of needle roller bearings unlike other bear-ings, mating surfaces such as shaft and housing bore surfaces can be used directly as the raceway sur-faces. For such use, accuracy and roughness of the raceway surfaces are important because they will influence bearing life, noise and accuracy.In general, accuracy and roughness of raceway sur-faces are based on Table 26.

Inclination of shaft

Shafts and outer rings may have some inclination between them due to deflection of the shaft, machin-ing accuracy of shafts and housings, errors in mount-ing, etc.In this case, the use of two or more bearings in tan-dem arrangement on a single shaft should be avoid-ed. Instead, a bearing with large load ratings should be used.It is recommended that inclination of shafts be less than 1/1000.

Table 27 Tolerance class IT values for basic dimensions

Basic dimension

mm

Over Incl.

Tolerance class（1）

IT5

Tolerance　μｍIT6 IT7

　−36

1018305080

120180250315400500

36

1018305080

120180250315400500630

45689

111315182023252730

689

1113161922252932364044

1012151821253035404652576370

Table 26 Specifications of shafts and housings for radial needle roller bearings

ItemShaft

Fitting surface Raceway surface Raceway surfaceFitting surface

Housing bore

Circularity0.3 × IT6（1）

or0.3 × IT5（1）

0.5 × IT6（2）or

0.5 × IT5（2）

0.8(3.2)

−

0.3 × IT6（1）or

0.3 × IT5（1）

0.3 × IT6（1）or

0.3 × IT5（1）

0.2（3）(0.8)

58 〜 64HRC（4）

0.3 × IT7（1）or

0.3 × IT6（1）

0.5 × IT7（2）or

0.5 × IT6（2）

1.6(6.3)

−

0.3 × IT7（1）or

0.3 × IT6（1）

0.3 × IT7（1）or

0.3 × IT6（1）

0.2（3）(0.8)

58 〜 64HRC（4）

Cylindricity

Surface roughnessμ mRa　　　　　（μ mRy）

Hardness

Notes(1)　30% or less of the dimensional tolerance for shafts or housing bores is recommended.(2)　50% or less of the dimensional tolerance for shafts or housing bores is recommended.(3)　When required accuracy is not critical, a surface roughness within 0.8 μmRa (3.2 μmRy ) is allowable.(4)　An appropriate thickness of the hardened layer is required.

Remark　 For tolerance class IT, see Table 27.

Table 24 Fit values for radial bearings (JIS Class 0) (Fit with housing bore)

DNominal outside

diameter

mm

∆ Dmp

Single plane mean outside diameter

deviation

G7 H7 J7 K6 K7 M7 N7 P7

Over

36

1018305080

120150180250315400

61018305080

120150180250315400500

0000000000000

- 8- 8- 8- 9-11-13-15-18-25-30-35-40-45

- 24〜 - 4- 28〜 - 5- 32〜 - 6- 37〜 - 7- 45〜 - 9- 53〜 -10- 62〜 -12- 72〜 -14- 79〜 -14- 91〜 -15-104〜 -17-115〜 -18-128〜 -20

- 20〜 0- 23〜 0- 26〜 0- 30〜 0- 36〜 0- 43〜 0- 50〜 0- 58〜 0- 65〜 0- 76〜 0- 87〜 0- 97〜 0-108〜 0

-14〜 6-16〜 7-18〜 8-21〜 9-25〜 11-31〜 12-37〜 13-44〜 14-51〜 14-60〜 16-71〜 16-79〜 18-88〜 20

-10〜 6-10〜 7-10〜 9-11〜 11-14〜 13-17〜 15-19〜 18-22〜 21-29〜 21-35〜 24-40〜 27-47〜 29-53〜 32

-11〜 9-13〜 10-14〜 12-15〜 15-18〜 18-22〜 21-25〜 25-30〜 28-37〜 28-43〜 33-51〜 36-57〜 40-63〜 45

- 8〜 12- 8〜 15- 8〜 18- 9〜 21-11〜 25-13〜 30-15〜 35-18〜 40-25〜 40-30〜 46-35〜 52-40〜 57-45〜 63

- 4〜 16- 4〜 19- 3〜 23- 2〜 28- 3〜 33- 4〜 39- 5〜 45- 6〜 52-13〜 52-16〜 60-21〜 66-24〜 73-28〜 80

0〜 20 1〜 24 3〜 29 5〜 35 6〜 42 8〜 51 9〜 5910〜 68 3〜 68 3〜 79 1〜 88 1〜 98 0〜 108

Incl. High Low

Remark　The negative value denotes a clearance and the positive value denotes an interference.

Hous

ing

Bearing

Hous

ing

Bearing

Hous

ing

Bearing

Hous

ing

Bearing

Hous

ing

Bearing

Hous

ing

Bearing

Hous

ing

Bearing

Hous

ing

Bearing

unit: μｍ

Table 25 Fit values for radial bearings (JIS Class 0) (Fit with shaft)　 d

Nominal bore diameter

mm

∆ dmp

Single plane mean bore diameter

deviation

g6 h5 h6 j5 k5 m5 m6 n6 p6

Over Incl. High Low

36

1018305080

120140160180200225250280315355400450

61018305080

120140160180200225250280315355400450500

0000000

0

0

0

0

0

-25 -39〜 11 -18〜 25 -25〜 25 -11〜 32 3〜 46 15〜 58 15〜 65 27〜 77 43〜 93

-30 -44〜 15 -20〜 30 -29〜 30 -13〜 37 4〜 54 17〜 67 17〜 76 31〜 90 50〜 109

-35 -49〜 18 -23〜 35 -32〜 35 -16〜 42 4〜 62 20〜 78 20〜 87 34〜 101 56〜 123

-40 -54〜 22 -25〜 40 -36〜 40 -18〜 47 4〜 69 21〜 86 21〜 97 37〜 113 62〜 138

-45 -60〜 25 -27〜 45 -40〜 45 -20〜 52 5〜 77 23〜 95 23〜 108 40〜 125 68〜 153

- 8- 8- 8-10-12-15-20

-12〜 4-14〜 3-17〜 2-20〜 3-25〜 3-29〜 5-34〜 8

- 5〜 8- 6〜 8- 8〜 8- 9〜 10-11〜 12-13〜 15-15〜 20

- 8〜 8- 9〜 8-11〜 8-13〜 10-16〜 12-19〜 15-22〜 20

- 2〜 11- 2〜 12- 3〜 13- 4〜 15- 5〜 18- 7〜 21- 9〜 26

1〜 141〜 151〜 172〜 212〜 252〜 303〜 38

4〜 176〜 207〜 238〜 279〜 32

11〜 3913〜 48

4〜 206〜 237〜 268〜 319〜 37

11〜 4513〜 55

8〜 2410〜 2712〜 3115〜 3817〜 4520〜 5423〜 65

12〜 2815〜 3218〜 3722〜 4526〜 5432〜 6637〜 79

Remark　The negative value denotes a clearance and the positive value denotes an interference.

Shaft

Bear

ing

Shaft

Bear

ing

Shaft

Bear

ing

Shaft

Bear

ing

Shaft

Bear

ing

Shaft

Bear

ing

Shaft

Bear

ing

Shaft

Bear

ing

Shaft

Bear

ing

unit: μｍ

Note(1)　Based on JIS B 0401.


A

B

C

D

E

F

G

H

I

J

K

L

M

Raceway materials and heat treatment

When using shafts and housings as raceways, the fol-lowing materials are generally used.　High-carbon chromium bearing steel

SUJ2 JIS G 4805　Carburizing steel SCM415〜 421 JIS G 4053　Carburizing steel SNCM 220 JIS G 4053　Carburizing steel SCr 420 JIS G 4053　Carburizing steel SNC 415, 815 JIS G 4053　Carburizing steel S 15 CK JIS G 4051In addition, S50C and S55C (JIS G 4051) can be used after through hardening or induction hardening.The hardened layer produced by tempering at +160〜+180°C after hardening must have a fine uniform martensite microstructure.When hardening the raceway surface by case hard-ening or induction hardening, a surface hardness of 58 〜 64HRC and an appropriate thickness of the hardened layer must be ensured. The minimum effective thickness of the hardened layer after heat treatment and grinding is defined as the distance from the surface to the depth where the hardness is 550HV, and it is obtained by the following equation.

　　　Eht≧ 0.8Dw(0.1＋ 0.002Dw) ……………(36)

　　where,　Eht： Minimum effective thickness of

the hardened layer, mm 　　　　Dw：Roller diameter, mmGenerally, the required effective thickness of the hardened layer is at least 0.3 mm.

Dimensions related to mounting of bearings

The dimensions of shaft and housing related to mounting of the needle roller bearings are shown in the table of dimensions for each bearing. (See Fig. 13.)

The minimum value of the shaft shoulder diameter d a which receives the inner ring, and the maximum value

of the housing shoulder diameter D a which receives the outer ring, represent the effective shoulder diame-ters (excluding the chamfered part) which make prop-er contact with the side faces of the inner and outer rings respectively.Also, the maximum value of the shaft shoulder (or

inner ring retaining piece) diameter d a is the dimen-sion related to the ease of mounting/dismounting of the shaft and inner ring to/from the housing and outer ring.

The largest permissible single corner radius r as max of the shaft and housing must be smaller than the small-

est permissible single chamfer dimension r s min of the bearing so that the side surface of the bearing can make proper contact with the shoulder. Table 28 shows the related dimensions.For dimensions of the fillet relief when finishing the shaft or housing by grinding, the values shown in Table 29 are recommended.For other dimensions related to mounting, see the related section for each bearing as required.In addition, for ease in dismounting of bearings, it is convenient to make notches in the shoulder of the shaft or housing to allow the insertion of dismounting hooks.

entry of harmful foreign substances, such as dirt, dust and water. For this reason, sealing devices must always work effectively to seal and prevent against dust penetration under all operating conditions. Also, when selecting a suitable sealing method, it is neces-sary to consider such factors as the type of lubricant, peripheral speed of the seal, operating temperature, shaft eccentricity, seal friction, etc. as well as ease of assembly and disassembly.Sealing methods are of the non-contact and contact types, and it is necessary to select the appropriate type depending on the application.

Non-contact type sealing method

There are many methods of non-contact type sealing, including the use of oi l grooves, f l ingers and labyrinths, which utilize the centrifugal force and nar-row gaps.Since they do not make direct contact with the shaft or housing, it is unnecessary to consider friction and wear, and the non-contact sealing method is suitable for high speed rotation and high operating tempera-tures. However, because of gaps, this method is not always sufficient in preventing oil leakage and dust entry when the machine is not in operation.

1 Oil grooveOil grooves are provided on either the shaft or hous-ing bore, or on both for more effective sealing (See Fig. 14.). The clearance between the shaft and the housing bore should be as small as possible, and the values shown in Table 30 are generally used, taking into consideration errors in machining and assembly, shaft deformation, etc. Three or more grooves are made with a width of 3〜 5 mm and a depth of 4〜 5 mm. If the grooves are filled with grease, it will be more effective for dust prevention.As shown in Fig. 15, helical grooves are suitable for horizontal shafts which have a fixed direction of rota-tion. Right or left handed grooves are used according to the direction of rotation, and they are used for oil lubrication normally in conjunction with a suitable anti-dust device.

Sealing

To obtain the best performance of rolling bearings, it is necessary to prevent leakage of lubricant and the

Fig. 13 Dimensions related to mounting

da Da

Fig. 14(1) (2) (3)

Table 29 Fillet relief dimensions for ground shafts and housings unit: mm

r s minSmallest permissible

single chamfer dimension

Fillet relief dimensions

t rgs b

11.11.522.134567.5

0.20.30.40.50.50.50.50.60.60.6

1.31.522.52.534567

2 2.4 3.2 4 4 4.7 5.9 7.4 8.610

h

rs min

b

trgs

Table 28 Largest permissible single corner radius of shafts and housings ras max

r s minSmallest permissible

single chamfer dimension

0.10.150.20.30.40.611.11.522.12.5345

0.10.150.20.30.40.6111.52222.534

r as maxLargest permissible single corner radius of shafts and

housings

unit: mm

Housing

Shaft

rs min

rs min

ras max

ras max

rs m

inrs

min


A

B

C

D

E

F

G

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M

Table 30 Clearance between grooved shaft and housing bore unit: mm

Shaft dia.

Incl. 50 mm

Over 50 mm

Clearance

0.25〜 0.4

0.5 〜 1

Fig. 17

Fig. 18

3 LabyrinthAlthough it is a little difficult to make, the labyrinth is very effective in preventing oil leakage especially at high speeds. At low speeds, filling the labyrinth with grease is effective in preventing the entry of dust. In Fig. 17, it is necessary to split the housing or cover plate into two. In Fig. 18, it is easy to assemble, and if combined with an oil seal, it improves the sealing effect.Table 31 shows the labyrinth clearances generally used.

Table 31 Labyrinth clearance unit: mm

Shaft dia.

Incl. 50 mm

Over 50 mm

Clearance

0.25〜 0.4

0.5 〜 1

1〜 2

3〜 5

Radial direction Axial direction

Contact type sealing method

In this type of sealing, the shaft is sealed by the appli-cation of pressure resulting from the elasticity of the seal material to the sealing surface of the shaft, which rotates, reciprocates or oscillates. Synthetic rubber, synthetic resin and felt are generally used as sealing materials.

1 Oil sealSynthetic rubber oil seals are the most general type of sealing used. The sealing effect is obtained when the elastic lip comes into contact with the shaft. Some lips are spring-loaded to maintain adequate pressing force.The sliding surfaces of the lip and the shaft always show frictional behavior such that the boundary lubri-cation and fluid lubrication are mixed. If there is an insufficient amount of oil between the contact sur-faces, it will cause heat generation, wear and seizure. Conversely, if the oil film is too thick, it may cause oil leakage.General oil seals are specified in JIS B 2402-1~5. IKO Oil Seals for Needle Roller Bearings (See page L1.) have a low sectional height to match the Needle Roller Bearings.Nitrile rubber is generally used as the material for oil seal lips. Table 32 shows the materials and their operating temperature ranges.The finished surface of the shaft where the seal lip makes contact must have an appropriate surface roughness, as shown in Table 33, according to the peripheral speed. It must also have accurate circular-ity, and the shaft eccentricity should be less than 0.05 mm.To increase wear resistance, the hardness of the slid-ing part of the shaft must be more than 40HRC. This can be achieved by hard-chrome plating or heat treat-ment.

Table 32 Seal materials and operating temperatures

Seal material

Synthetic rubber

Nitrile rubber

Acrylic rubber

Silicon rubber

Fluoro rubber

Tetrafluoethylene resin

Operating temperature range

− 25〜＋ 120

− 15〜＋ 130

− 50〜＋ 180

− 10〜＋ 180

− 50〜＋ 220

Table 33 Peripheral speed and surface roughness of shaft

Peripheral speed m／ s

Over Incl.

− 5

10

5

10

−

0.8(3.2)

0.4(1.6)

0.2(0.8)

Surface roughness

μ mRa( μ mRy)

2 Felt sealBecause of their simple structure, felt seals have long been used to protect grease lubrication from dust. Since felt absorbs some grease during operation, it hardly causes heat generation and seizure, but it can-not be used when the peripheral speed of the shaft is high (more than 4 m/s). Where there is a high con-centration of dirt and dust, they may become attached to the contact surface of felt, sometimes scratching the shaft surface. To prevent this, two felt seals are placed apart from each other, or a felt seal is used together with a synthetic rubber seal.

(1)

(2)

2 FlingerThe oil flinger is a disk attached to the shaft which throws off oil due to the centrifugal force of rotation and thus prevents oil leakage and the entry of foreign particles. Fig. 16 (1) shows an example in which the flinger is located inside the housing, mainly to prevent oil leakage. Since it sucks in dust and dirt, it should be used in a dust free environment. Fig. 16 (2) shows an example in which the flinger is located outside the housing, and is used in combination with another sealing device, to prevent entry of foreign particles.

Fig. 15

Fig. 16

(1)

(2)


A

B

C

D

E

F

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Lubrication Methods of lubrication

Grease lubrication and oil lubrication are generally used for rolling bearings. In special cases, solid lubri-cants are also used.In general, grease lubrication requires the simplest sealing device. It is therefore economical, and widely used. Also, once filled with grease, the bearing can be used for a long period without replenishing the grease. However, compared with oil, its heat removal properties and cooling capacity are inferior, since grease has high flow resistance, which causes high churning heat.Oil has greater fluidity and superior heat removal properties. It is therefore suitable for high-speed operations. In addition, it is simple to filter out dust and dirt from oil. Thus it can prevent the generation of noise and vibration and increase bearing life. Another advantage of oil lubrication is that it offers the possibility for selecting the appropriate method for particular operating conditions from among various available lubrication methods. However, measures to prevent oil leakage are required. As a guideline for selection, Table 34 compares grease and oil lubrica-tion.For the lubricants used for IKO Spherical Bushings, see page K8.

Purpose of lubrication

The main purpose of bearing lubrication is to reduce friction and wear and to prevent heat generation and seizure. The lubricant and the lubricating method have a big influence on the operating performance of the bearing, and it is therefore necessary to select them suitably for the operating conditions.The effects of lubrication are as follows.

1 Reduction of friction and wearAt the contact surfaces between the race rings, rolling elements and cage of the bearing, lubrication pre-vents metal-to-metal contact, and reduces friction and wear due to sliding and rolling, in the latter of which micro-slips occur by differential slip, skew, spin, or elastic deformation.

2 Elimination of frictional heatThe lubricant removes the heat generated by friction or transferred from outside, and prevents overheating of the bearing. Circulating lubrication is generally used for this purpose.

3 Influence on bearing lifeThe bearing life is extended if the rolling contact sur-faces between the race rings and rolling elements are separated by an oil film of adequate thickness, and is shortened if the oil film is inadequate due to low oil viscosity, etc.

4 Rust preventionThe lubricant prevents rust formation on the inside and outside surfaces of the bearing.

5 Dust preventionGrease lubrication is particularly effective for dust pre-vention. Oil circulating or jet lubrication is effective in washing foreign particles away from the area around the bearing.

Table 34 Comparison between grease lubrication and oil lubrication

Item

Sealing, Housing structure

Temperature

Rotational speed

Load

Maintenance

Lubricant replacement

Lubrication performance

Dust filtration

Entry of dust and dirt

Grease lubrication（1） Oil lubrication

Simple

High temperature not allowed

Low and medium speeds

Low and medium loads

Easy

Slightly complicated

Good

Difficult

Easy measures for protection

Slightly complicated

High temperature allowed (Cooling effect by circulation)

High speed allowed

High load allowed

Elaborate(Pay special attention to oil leaks. )

Simple

Very good

Simple

Dust and dirt can be removed by filtering in circulating lubrication.

Note(1)　This represents bearing grease for general use.

Grease lubrication

1 Amount of grease to be filledThe amount of grease to be filled depends on the housing structure, dimensions, type of grease used and atmosphere. Generally, filling about 1/3 to 1/2 of the free space inside of the bearing and the housing is considered to be appropriate. Too much will cause a rise in temperature, and care should be taken espe-cially at high speed rotations.In Fig. 19, several grease pockets are provided by the grease sectors on one side of the bearing. Even if the filled grease is dispersed by the centrifugal force at high rotational speeds, it is trapped by the grease pockets and diverted back into the bearing again. Old grease accumulates in the space on the opposite side of the bearing, and this can be removed periodically by taking off the cover.

2 Replenishment of greaseThe life of grease depends on its type and quality, the type and dimensions of the bearing, operating condi-tions, temperature, amount of wear, penetration of for-eign particles and water, etc.Fig. 20 shows the replenishment intervals for grease, and is used as a general guideline. The values obtained from this diagram apply to cases in which the load condition is normal, the machine body is sta-tionary, and the operating temperature on the outer surface of bearing outer ring is less than +70°C. If the temperature exceeds +70°C, as a general rule, the replenishment interval is halved for every 15°C increase.

Fig. 20 Interval for replenishment of grease

Fig. 19

Remark　d is the bore diameter of the inner ring. For a bearing without an inner ring, the roller set bore

diameter Fw is used for d .

Rep

leni

shm

ent i

nter

val f

or g

reas

e,

tf

hour

s

Rotational speed,　n min-1

200200

300

400500600

800

1000

1500

2000

3000

4000

50006000

8000

10000

15000

20000

400 600 1000 2000 4000 6000 10000

d＝10m

m203040506080100120

140160180200240

280

300


A

B

C

D

E

F

G

H

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M

Oil lubrication

1 Oil bath lubricationThis is the most commonly used oil lubrication method, and is used for medium and low speeds. If the amount of oil is too large, heat will be generated by churning, and if the amount is too small, seizure will occur. Therefore, the correct amount of oil must be maintained. When the machine is stationary, the correct oil level in the case of a bearing mounted on a horizontal shaft, is near the center of the lowest rolling element. In the case of a vertical shaft, about 50% of the surfaces of the rolling elements should be sub-merged in oil.It is desirable to provide an oil gauge so that the oil level can be easily checked while the machine is sta-tionary or running.

2 Oil drip lubricationOil drips, which are fed down from a sight-feed oiler or along a fiber string, become an oil spray due to wind pressure generated by the rotating cage, shaft, nut, etc., or they strike the rotating parts and form an oil spray, which fills up the housing and every required part. Because oil spray removes frictional heat, this method has a more effective cooling effect than the oil bath method, and is widely used for high-speed rota-tion and medium load conditions.In the case of the sight-feed oiler (Fig. 21), the num-ber of drips can be adjusted. However, this is difficult using the string-feed method. The number of drips depends on the bearing type, rotational speed, etc., but 5 〜 6 drips per minute is generally used.

3 Oil splash lubricationIn this method, oil is splashed in all directions by the rotation of the gear or disk. This can be used for con-siderably high-speed rotations without soaking the bearing directly in oil.In the gear case where shafts and bearings are lubri-cated with the same oil, wear particles may be intro-duced into the bearing as they might get mixed with the oil. In this case, a permanent magnet is provided at the bottom of the gear case to collect metal parti-cles, or a shield plate is installed next to the bearing.Fig. 22 shows another method in which the splashed

4 Oil circulating lubricationWhen automatic lubrication is more economical because lubrication is required at many points, or when cooling is required for high rotational speed, this method is used. The oil is supplied with a pump, which can control the oil pressure, and a filter or cool-er, etc. can be set up in the circulation system, mak-ing this an ideal method of lubrication. As shown in Fig. 23, the oil supply and discharge ports are located opposite to each other, and the discharge port is made large to prevent the accumulation of oil.

5 Oil mist lubricationAfter dirt and dust are removed by a filter, the oil is turned into a spray by dry compressed air, and this lubricates the bearing. When the air and oil pass through the bearing, the air cools the bearing and the oil lubricates it. In addition, because the air inside the housing is at a higher pressure than the outside air, the entry of water and foreign particles is prevented. There are many other advantages of this method, and it is suitable for high rotational speed applications such as high speed internal grinding spindles.

6 Oil jet lubricationThis is a highly reliable lubrication method and is used under severe conditions such as ultra-high rotational speeds and high temperatures. The speed of the oil jet should be more than 20% of the peripheral speed of the inner ring raceway surface, since the air around

the bearing rotates together with the bearing forming an air wall. As shown in Fig. 24, the jet from the noz-zle blows directly into the space between the inner ring and the cage. Due to the large amount of oil being used, it is more effective to make the discharge port larger, and use the forced discharge.

When the dmn value (mean value of the bearing out-side and bore diameters in millimeter x rotational speed in min-1) is more than 1,000,000, the speed of the jet should be 10〜 20 m/s, the nozzle diameter should be about 1 mm, oil supply pressure should be 0.1〜 0.5 MPa, and the oil supply amount should be about 500 cc/min or greater. When the rotational speed is higher, the oil supply pressure and the oil amount should be higher.

Lubricants

For rolling bearings, lubricating grease or oil is gener-ally used. For special applications, solid lubricants are used.

Lubricating grease

Grease is a semi-solid lubricant made by mixing base oil (liquid lubricant) and a thickener under heat and adding additives as required.There are many types of grease according to various combinations of base oil, thickeners and additives. Grease is usually classified by thickeners and base oil. Table 35 shows the general properties of each type of grease.Reference examples of the lubricant greece brand and performance are shown on page M46.

Excellent under low temperature conditions and has superior frictional prop-erties. Suitable for small bearings used in mea-suring instru-ments.

Table 35 Properties of various types of grease

Name (Common name)

Item

Calcium grease

Cup grease

Sodium grease

Fiber grease

Aluminum grease

Mobile grease

Mixed base grease

Barium grease Lithium grease

Diester grease

Silicon grease

Bentone grease

Non-soap base grease(Non-soap grease)

Base oil

Thickener

Appearance

Pour point


Pressure resistance

Water resistance

Mechanical stability

Features and application

Mineral oil

Ca soap

Buttery

80 〜 90

− 10 〜＋ 70

Strong to weak

Good

Fair

Contains about 1% water. When the tem-perature rises to more than +80°C, the water evapo-rates and the grease sepa-rates into oil and soap. This is used for medium loads.

Mineral oil

Na soap

Fibrous and

buttery

150 〜 180

− 20 〜＋ 120

Strong to medium

Poor

Good

Mineral oil

Al soap

Stringy and

buttery

70 〜 90

− 10 〜＋ 80

Strong

Good

Poor

Long fibrous grease cannot withstand high speeds, but has good pres-sure resis-tance proper-ties. Short fibrous grease is compara-tively good for high speeds.

It has water and rust resis-tant proper-ties, and adheres easily to metal sur-face.

Mineral oil

Na + Ca soap,Li + Ca soap

Fibrous and

buttery

160 〜 190

− 10 〜＋ 100

Strong

Good, poor for Na+

Ca soap grease

Good

Usable at fairly high speeds.

Mineral oil

Ba soap

Fibrous and

buttery

150 〜 180

− 10 〜＋ 135

Strong to medium

Good

Poor

It has water and heat resis-tant proper-ties. This is an all-purpose grease.

Mineral oil

Li soap

Buttery

170 〜 190

− 20 〜＋ 120

Medium

Good

Excellent

This is the best all-purpose grease among soap based greases.

Diester oil

Li soap

Buttery

170 〜 190

− 50 〜＋ 120

Medium

Good

Excellent

Silicon oil

Li soap

Buttery

200 〜 250

− 50 〜＋ 180

Weak

Good

Excellent

Mainly used for high tem-peratures. Not suited to high speeds and heavy loads.

Mineral oil

Bentone

Buttery

200 〜

− 10 〜＋ 150

Medium to weak

Good

Good

Generally good heat resis-tance. Grease having a miner-al base oil is for general use. Grease having a synthetic base oil is suitable for special use where superior heat and chem-ical resistance properties are required.

Synthetic oil

Silica gel. Polyurea,

etc.

Buttery

None

〜＋ 200

Medium

Good

Good to poor

（　　）（　　）（　　）（　　）（　　）（　　）

oil flows along the grooves in the case and accumu-lates in the oil pockets, keeping the oil level constant. So the oil is steadily supplied to the bearing.

Fig. 22 Oil splash lubrication

Fig. 23 Oil circulating lubrication

Fig. 21 Oil drip lubrication

Fig. 24 Oil jet lubrication


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E

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ISO viscosity grade(VG)

Table 36 Consistency and operating conditions of grease

NLGIconsistency number

Combined consistency Application

0

1

2

3

4

385 〜 355

340 〜 310

295 〜 265

250 〜 220

205 〜 175

For centralized lubrication,

For oscillating motion

For general use

For general use, For high temperature

For sealing with grease

Table 37 Bearing series and required viscosity of lubricating oil

Bearing series

Needle roller bearings Roller bearings

Crossed roller bearings

Thrust needle roller bearingsThrust roller bearings

Kinematic viscosity at operating temperatures

13 mm2/s or more

20 mm2/s or more

32 mm2/s or more

1 Base oilPetroleum lubricating oil is usually used as the base oil.As the lubricating performance of grease depends mainly on that of base oil, the viscosity of the base oil is an important property. In general, low viscosity is suitable for light-load and high-speed rotations, and high viscosity for heavy-load and low-speed rotations. Synthetic lubricants of the diester or silicon series are used instead of lubricants of the petroleum series in consideration of the pour point and high temperature stability.

2 ThickenerAs shown in Table 35, metal soap bases are mostly used as thickeners. In particular, Na-soap is water-soluble and emulsifies easily, and it cannot be used in damp or wet areas. The type of thickener and the pour point of grease have a close relationship. In general, the higher the pour point, the higher the max-imum usable temperature of grease. However, even when the grease uses a thickener having a high pour point, its upper operating temperature limit is low if its base oil has low heat resistance.

3 ConsistencyThis represents the hardness grade of grease. Grease becomes harder in proportion to the amount of thickener if the same thickener is used.Immediately after grease has been stirred (usually 60 times), a depression is formed in the grease in a specified time using a specified cone. The consisten-cy (combined consistency) is expressed by the value of depth of depression (mm) multiplied by 10.This value gives an estimate of the fluidity during operation with a greater value for softer grease.Table 36 shows the consistency number of grease and the relationship between the consistency and operating conditions.

running for long periods of time, its temperature rises. This results in oxidation of the lubricant and formation of oxides, which lead to corrosion of the bearing.Thus, when a bearing is to be operated for long peri-ods of time without regreasing, antioxidants are added. In addition, grease containing extreme pres-sure additives is suitable for use in places that are subjected to heavy loads.

5 Miscibility of different greasesIn principle, it is desirable to use grease of the same brand. However, when the mixing of different greases is unavoidable, greases with the same type of thick-ener and with a similar type of base oil should be used.It should be noted that if different types of grease are mixed, they may interact with each other and the con-sistency will become softer than that for the individual greases.

Lubricating oil

For rolling bearings, refined mineral oil or synthetic oil is used. To improve its properties, antioxidant addi-tives, extreme pressure additives and detergent addi-tives are added as required.When selecting lubricating oil, it is important to select oil which has adequate viscosity under operating tem-peratures. If the viscosity is too low, the formation of the oil film will be insufficient, causing abnormal wear and seizure. On the other hand, if the viscosity is too high, it will generate excessive heat or increase power loss due to viscous resistance. As a general stan-dard, oil having higher viscosity should be used for heavier loads and oil having lower viscosity should be used for higher rotational speeds.Under conditions of normal use for various bearings, the values of viscosity shown in Table 37 will be a guideline.The relationship between viscosity and temperature can be obtained from Fig. 25. Also, Table 38 shows examples of selecting lubricating oil according to the conditions of bearing use.

4 AdditivesAdditives include various types of substances, which are added to grease in small quantities to improve its characteristics. For example, when a bearing is kept

Fig. 25 Relationship between viscosity and temperature of lubricating oil

Table 38 Conditions of bearing use and examples of lubricating oil selection

Conditions

− 30 〜 0

　 0 〜 50

　50 〜 80

　80 〜 110

dmn valueLoad

10 15 22 32 46 68 100 150 220 320 460 680

Oper

atin

g te

mpe

ratu

re

Remarks　・Lubricating oils are based on JIS K 2211 (Refrigerating machine oils), JIS K 2239 (Bearing Oil), JIS K 2213 (Turbine Oil), and JIS K 2219 (Gear Oil).

　　　　　・The method of lubrication in these cases is mainly oil bath lubrication or circulating lubrication.　　　　　・When the temperature is on the high side within the operating temperature range, oils of high viscosity are used.　　　　　・dmn represents the mean value of the bore and outside diameters (mm) of the bearing multiplied by the rotational speed (min-1).

Refrigerator oil

Bearing oil

Bearing oil

Bearing oil

Turbine oil

Turbine oil

Turbine oil Gear oil

Large

Small

Small

Large

Vis

cosi

ty

Redwood(sec)

Saybolt(sec)

Temperature

5000

2000

1000

500

300200

10080

60

50

40

5000

20001000

500300200

100

504030

20

10

5

4

2000

1000

500

300200

100

80

60

50

40

-20 0 20 40 60 80 100 120 140 160 °C

-20 0 20 40 60 80 100 120 160 200 240 280 320 °F

A B C D E F G H J K L M N

A : VG 7B ： VG10C ： VG15D ： VG22E ： VG32F ： VG46G ： VG68

H ： VG100J ： VG150K ： VG220L ： VG320M ： VG460N ： VG680

Centistrokes

ISO viscosity grade (Viscosity index 80)


A

B

C

D

E

F

G

H

I

J

K

L

M

Friction and AllowableRotational SpeedFriction

Compared with sliding bearings, the starting (static) friction for rolling bearings is small, and the difference between the starting (static) friction and the kinetic friction is also small. The loss of power and tempera-ture rise in machines are thus reduced, improving the mechanical efficiency.Frictional torque is influenced by the bearing type, bearing load, rotational speed, lubricant characteris-tics, etc. It varies according to the lubricant when operated under light-loads and high-speed conditions, and according to the load when operated under heavy-loads and low-speed conditions.Frictional torque of rolling bearings is complicated because it is influenced by various factors, but for convenience, it can be expressed approximately by the following equations.

・Radial bearings　M＝μ P　　……………………(37)

・Thrust bearings　M＝μ P　　……………………(38)

　　where,　M ：Frictional torque, N-mm　　　　　　μ：Coefficient of friction

　　　　　　P ：Bearing load, N　　　　　　d ：Bearing bore diameter, mm　　　　　　d m：Mean value of bearing bore and

outside diameters, mm

The approximate coefficients of fr iction of IKO Bearings under operating conditions, in which lubrica-tion and mounting are correct and where loads are relatively large and stable, are shown in Table 40.


As the rotat ional speed of rol l ing bear ings is increased, the bearing temperature also increases due to the heat generated at the contact surfaces between the cage, raceways and rolling elements, until it finally leads to bearing seizure. It is therefore necessary to maintain the rotational speed of a bear-ing below a certain limit value to ensure safe opera-tion for long periods. This limit value is called the allowable rotational speed.Since the amount of heat generated is approximately proportional to the sliding speed at the contact area, this sliding speed is an approximate guide indicating the limit of the bearing rotational speed.The allowable rotational speed of bearings thus varies according to the bearing type, size, bearing load, method of lubrication, radial clearance, and other such factors.The allowable rotational speeds shown in the table of dimensions are empirical values. They are not absolute values and can be changed according to the bearing use conditions. Depending on the structure and accuracy around the bearing, the lubricant and the lubrication method, it is possible for some bear-ings to be operated at more than twice the allowable rotational speed given in the table without trouble.

d2

dm2

Table 40 Coefficient of friction

Bearing series

Needle roller bearings with cage

Full complement needle roller bearings


Thrust roller bearings

μ

0.0010 〜 0.0030

0.0030 〜 0.0050

0.0030 〜 0.0040

0.0030 〜 0.0040

C-Lube Bearing

IKO C-Lube Bearing is a bearing that is lubricated with a newly developed thermosetting solid-type lubri-cant. A large amount of lubricating oil and fine parti-cles of ultra high molecular weight polyolefin resin are solidified by heat treatment to fill the inner space of the bearing. As the bearing rotates, the lubricating oil oozes out onto the raceway in proper quantities, maintaining the lubrication performance for a long period of time.The dimension tables for C-Lube Machined Type Needle Roller Bearings, C-Lube Cam Followers, and C-Lube Roller Followers are shown on pages D77, I55, and I99.C-Lube Bearing is available in all Needle Roller Bearing series. Also C-Lube Bearings for food pro-cessing are available, using NSF H1-certified lubrica-tion oil and resin compliant with FDA standards to mit-igate any effect on human health. If needed, please contact IKO.

Features of C-Lube Bearing

・Most suitable for preventing grease dry-up in appli-cations where lubrication is difficult.

・Great reduction of maintenance work by extending the lubrication interval.・Elimination of oil contamination, making this bear-

ing most suitable for applications that would be adversely affected by oil.

Cautions for using C-Lube Bearing

・Never wash C-Lube Bearing with organic solvent and/or white kerosene which have the ability to remove fat, or leave the bearing in contact with these agents.

・The operating temperature range is -15〜+80°C. For continuous operation, the recommended oper-ating temperature is +60°C or less.

Structure of C-Lube Bearing

Solid-type lubricant

Needle roller

Outer ring

Notes(1)dmn＝＝（bore diameter of bearing［mm］＋ outside diameter of bearing［mm］）　　　　　　　　/2× rotational speed［min-1］

(2)d1n＝＝ stud diameter［mm］×rotational speed［min-1］(3)dn＝＝ inner ring bore diameter［mm］×rotational speed［min-1］(4)The allowable rotational speed of C-Lube Roller Followers

is applicable to use with oscillating rotation. For use with one-way or continuous rotation, please consult IKO.

・To ensure normal rotation of the bearing, apply a load of 1% or more of the basic dynamic load rating at use.

・The allowable rotational speed is different from that of the general needle roller bearings. For dmn, d1n, and dn, use the values in Table 39 or less as guide-lines.

Table 39 C-Lube Bearing dmn , d1n , dn



C-Lube Roller Followers （4）


dmn （1）,d1n （2）,dn （3） Representative model

TAF･･･/SG

CF･･･/SGNART･･･/SG

dmn=20 000d1n =10 000dn = 8 000

Main model code


A

B

C

D

E

F

G

H

I

J

K

L

M

Handling of BearingsOperating Temperature RangeThe allowable operating temperature range for needle roller bearings is generally -20〜 +120°C.When operating at temperatures outside this range, the operation may be limited by the allowable temper-ature range of prepacked grease, seal, cage material, etc. Further, if the bearing is used at high tempera-ture, i.e. 120°C or above, the amount of dimensional displacement gets larger. So special heat treatment is necessary.The operating temperature range for some types of bearings is different from the above. See the section for each bearing.

Precautions in handling

Since the bearing is a high-accuracy mechanical ele-ment, special attention must be paid to its handling. The following precautions should be noted when han-dling the bearings.

1 Bearings and their surrounding parts should be kept clean.Bearings and their surrounding parts must be kept clean paying special attention to dust and dirt. Tools and the working environment should also be cleaned.

2 Bearings should be handled carefully.A shock load during handling may cause scratches, indentations and even cracks or chips on the raceway surfaces and rolling elements.

3 Bearings should be mounted or dismounted with proper tools.When mounting and dismounting, tools suitable for the bearing type should be used.

4 Bearings should be protected against corrosion.Bearings are treated with anti-corrosive oil. However, when handling them with bare hands, sweat from the hands may result in future rust formation. Gloves should be worn, or hands should be dipped in mineral oil.

Mounting

Preparation

Before mounting the bearing, the dimensions and fil-lets of the shaft and housing should be checked to ensure that they conform to specifications.Bearings should be unwrapped just before mounting. In case of grease lubrication, bearings should be filled with grease without cleaning the bearings. Even in the case of oil lubrication, it is normally unnecessary to clean the bearings. However, when high accuracy is required or when using at high speeds, the bear-ings should be cleaned using cleaning oil to remove thoroughly oily contents. The cleaned bearings should not be left alone without anti-corrosive precau-tions, because bearings can easily be corroded after anti-corrosive agents are removed.Lubricating grease is prepacked in some types of bearings. Therefore, refer to the relevant section for each bearing.

Methods of mounting

Mounting methods of bearings are different according to the type of bearing and the fit. In general, mount-ing of needle roller bearings is comparatively easy. However, non-separable bearings with large interfer-ences should be handled with great care.

1 Mounting by press fitSmall and medium bearings with small interferences require a small pressing-in force for mounting, and they are mounted using a press at room temperature. The bearing should be pressed in carefully, applying a force evenly to the bearing with a fitting tool as shown in Fig. 26. For separable bearings, the inner and outer rings can be mounted separately, and the mounting work is simple. However, when installing the shaft and inner ring assembly into the outer ring, care should be taken not to damage the raceway sur-faces and rolling elements.

When mounting non-separable bearings, the inner and outer rings are pressed in simultaneously by applying a cover plate as shown in Fig. 27. It must never happen that the inner ring is press-fitted to the shaft by striking the outer ring, or the outer ring by striking the inner ring, because the raceway surfaces and rolling elements will be scratched or indented.

Fig. 27

When press fitting, the friction of the fitting surfaces can be reduced by applying high viscosity oil over the fitting surfaces.The pressing-in or pulling-out force to be applied to the bearing is given on page A59.

2 Mounting by shrink fittingThis method is used when the interference is great or when a large bearing is to be fitted. The housing is heated and thermally expanded when fitting the outer ring to the housing and the inner ring is heated and expanded when fitting it to the shaft allowing the bear-ing to be set easily within a short time. The maximum allowable temperature for the shrink fit is +120°C, and heating should be performed appropriately. Pure non-corrosive mineral oil is recommended as the heating oil for shrink fit, and insulation oil for trans-formers is considered to be the best. During cooling, the bearing also shrinks in the axial direction. Therefore, to ensure that there is no clearance between the bearing and the shoulder, an axial force must be applied continuously to the bearing until it has cooled.When the interference between the outer ring and the housing is great, an expansion fit method in which the bearing is cooled using dry ice or other cooling agent before fitting can be used. Immediately after fitting, however, moisture from the air easily condenses on the bearing. Therefore, it is necessary to take pre-ventive measures against corrosion.

Fig. 26


A

B

C

D

E

F

G

H

I

J

K

L

M

dd＋ 2

dF( )｛｝

Dismounting of inner ring

In the case of bearings such as needle roller bearings in which the inner and outer rings are separable, the simplest way to press out the inner ring is by using a press as shown in Fig. 29.The puller shown in Fig. 30 is also generally used. This is designed according to the bearing size. In addition, there are a 3-hook puller (Fig. 31) and a 2- hook puller for wide-range use.

Dismounting

Dismounting of the bearings is carried out for the peri-odic inspection or repairs of machines. By inspecting the bearing, related parts or mechanisms, lubrication, etc., important data is obtained. In the same manner as in mounting, care should be taken to prevent dam-age to the bearing or other parts.A suitable dismounting method should be selected according to the type of the bearing, fit, etc. Bearings mounted by interference fit are especially difficult to dismount, and it is necessary to give due considera-tion to the structure around the bearing during the design stage.

Dismounting of outer ring

Outer rings mounted by interference fit are dismount-ed as shown in Fig. 28, by screwing in the push-out bolts evenly through several screw holes provided at places corresponding to the side face of the outer ring.

In addition to these, when it is difficult to remove the inner ring due to high shoulders, several holes for removal pins are made through the shoulder, or sev-eral hook grooves are cut in the shoulder as shown in Fig. 32 and Fig. 33.When a bearing is not to be used again after removal, it may be removed by heating with a torch lamp.

Pressing force and pulling force

Guidelines for the pressing force when pressing in the inner ring to the shaft and the pulling force when pulling it out are obtained from the following equation.

　　　K＝ f k　　　 ∆ d fB 1−　　2 ………(39)

　　where, 　K ：Pressing or pulling force, N　　　　　　 f k ：Resistance factor determined by the coefficient of friction

　　　　　　 When pressing in inner ring to shaft, fk=4×104

　　　　　　 When pulling out inner ring from shaft, fk=6×104

　　　　　　d 　：Bore diameter of inner ring, mm　　　　　　∆ df ：Apparent interference, mm　　　　　　B　：Width of inner ring, mm　　　　　　F 　：Outside diameter of inner ring, mmThe actual pressing force or pulling force may be greater than the calculated value due to mounting errors. When designing a puller, it is necessary that the puller has the strength (rigidity) to withstand more than 5 times the calculated value.

Running test

After mounting the bearing, a running test is carried out to check whether the mounting is normal. Usually, it is first checked by manual turning. Then, it is operated by power gradually from no-load and low-speed up to normal operating conditions to check for abnormalities.Noise can be checked by using a soundscope or simi-lar instrument. In this test, checks are carried out for the following abnormalities.

1 Manual turning　(a) Uneven torque ……………… Improper mounting　(b) Sticking and rattling … Scratches or indentations

on the raceway surface　(c) Irregular noise … Penetration of dust or foreign

particles

2 Power running　(a) Abnormal noise or vibration … Indentations on

the raceway surface, too great clearance　(b) Abnormal temperature … Unsuitable lubricant,

improper mounting, too small clearance

Fig. 28

Fig. 29

Press

Fig. 30

Fig. 31

Fig. 32

Fig. 33


A

B

C

D

E

F

G

H

I

J

K

L

M

Inspection of bearing

Cleaning of bearing

When inspecting a bearing after removal, the appear-ance of the bearing should be recorded first. Then, after the residual amount of lubricant is checked and a sample of lubricant is collected, the bearing should be cleaned.For cleaning, light oil or kerosene is commonly used. Cleaning is divided into rough cleaning and final cleaning, and wire gauze is set as a raised bottom in a container to prevent the bearing from touching the bottom of the container.Lubricating grease and adhering substances such as foreign particles are removed with a brush, etc., using oil for rough cleaning. Care should be taken during this process, because if the bearing is turned with foreign particles attached, the raceway surfaces may be scratched.Final cleaning is carried out by turning the bearing in cleaning oil. It is desirable that the cleaning oil is kept clean by filtering. Immediately after cleaning, the bearing must be protected against corrosion.

Inspection and evaluation of bearing

The judgement as to whether the removed bearing is reusable depends on the inspection after cleaning. Conditions of the raceway surfaces, rolling elements and fitting surfaces, wear condition of the cage, increase of bearing clearance, dimensions, rotational accuracy, etc. should be checked for damage and abnormalities.The evaluation is performed based on the experience taking into consideration the degree of damage, machine performance, importance of the machine, operating conditions, period until the next inspection, and other such factors.

Maintenance and inspection

Maintenance and inspection

Maintenance and inspection are carried out to main-tain good performance of bearings installed in the machine.Maintenance is performed by checking the machine operating conditions, checking and replenishing or replacing the lubricant, checking the bearing and related parts by periodic disassembly and other such procedures.Items for inspection of a running bearing in a machine include the bearing temperature, noise, vibration and condition of lubricant.When any abnormality is found during operation, the cause should be investigated and measures taken by referring to the section on running test on page A59. When removing a bearing, refer to the section on dis-mounting on page A59.

Damage, causes and corrective action

Rolling bearings can generally be used fully up to their rolling fatigue life if they are properly selected, mounted, operated and maintained. However, they may actually be damaged earlier than their expected lifetimes creating problems or accidents. Common causes of damage include improper mounting or han-dling, insufficient lubrication and penetration of foreign particles.It may be difficult to determine the exact cause of a problem by checking only the damaged bearing. The conditions of the machine before and after the occur-rence of the damage, the location and the operating and ambient conditions of the bearing, the structure around the bearing, etc. should also be examined. It then becomes possible to assess the cause of the damage by linking the conditions of the damaged bearing to the probable causes arising from the machine operation, and to prevent the recurrence of similar problems.Common types of damage, causes and corrective action are listed in Table 41.

Table 41 Damage, causes and corrective action

Condition of bearing damage Cause Corrective action

Flakings at opposite circumferential positions on raceway surfaces

Flakings in the vicinity of raceway surface edges and roller ends

Flakings on raceway surfaces with an interval corresponding to roller pitch

Early flaking on raceway surfaces and rolling elements

Galling on raceway surfaces and rolling surfaces of rollers

Galling between roller end faces and collar guide surfaces

Cracks in outer or inner ring

Cracked rolling elements, broken collar

Broken cage

Indentations on raceway surfaces at an interval corresponding to the pitch between rolling elements (brinelling)

Indentation on raceway surfaces and rolling surfaces of rollers

False brinelling(Phenomenon like brinelling)

Fretting Localized wear of fitted surfaces accompanied by red-brown

wear particles

Wear on raceway surfaces, collar surfaces, rolling surfaces of rollers, cages, etc.

Creep Wear on fitted surfaces

Discoloration of rolling elements and/or raceway surfaces and/or flange surfaces, Adhesion and welding, Discoloration of cage

Ripples on raceway surfaces

Rust or corrosion on bearing inside surfaces or on fitted surfaces

Improper roundness of housing bore

Improper mounting, Shaft deflection, Poor centering, Poor accuracy of shaft or housing

Great shock load when mounting, Rusting during machine stoppage

Too small clearance, Too great load, Poor lubrication, Rusting, etc.

Poor lubrication in early stage Grease consistency too hardHigh acceleration at start

Poor lubrication, Poor mounting, Large axial load

Excessive shock load, Too much interference.Poor cylindricity of shaft. Too large fillet radius,Development of thermal cracks,Development of flaking

Development of flakingShock to collar when mounting,Dropped by careless handling

Abnormal load to cage by poor mounting,Poor lubrication

Shock load applied when mounting, Excessive load while stopping

Biting of foreign substances such as metal chips and sands

Vibration when the bearing is stationary such as during transportation, Oscillating motion with small amplitude

Sliding between fitted surfaces

Penetration of foreign particles, Poor lubrication, Rust

Sliding between fitted surfaces, Insufficient tightening of sleeve

Poor lubrication, Too small clearance, Poor mounting

Melting by sparks due to electric current

Condensation of vapor in air, Penetration of corrosive substances

Correction of housing bore accuracy

Careful mounting, Careful centering, Correction of shoulders of shaft and housing for right angles

Careful mounting, Protection against rust for long periods of machine stoppage

Correct selection of fit and clearanceCorrect selection of lubricant

Selection of softer grease,Avoiding quick acceleration

Correct selection of lubricantCorrect mounting

Reevaluation of load conditions, Correction of fit, Correction of machining accuracy of shaft or sleeve, Making fillet radius smaller than the chamfer dimension of bearing

Careful handling and mounting

Minimizing mounting errors, Study of lubricating method and lubricant

Careful handling

Cleaning of housing, Improvement of sealing, Use of clean lubricant

Fixing of shaft and housing, Use of lubricating oil, Application of preload to reduce vibration

Increase of interference, Application of oil

Improvement of sealing, Cleaning of housingUse of clean lubricant

Increase of interference, Correct tightening of sleeve

Supply of proper amount of proper lubricant, Rechecking of fit and bearing clearance Rechecking of mounting dimensions and related parts

Insulation of bearing, Grounding to avoid electric current

Careful storage if under high temperature and high humidity, Protection against rust, Improvement of sealing

Flak

ing

Galli

ngBr

eaka

geDe

ntAb

norm

al w

ear

Seizu

reEle

ctric

corro

sion

Rust

, co

rros

ion

A63

TA・TLA・BA・BHA

KT

KT…EG・KTV…EG


TAF…/SG

NAF





CF…B・CFKR・CFS・NUCF…B・CR

CF…/SG


NART…/SG


SB・GE・SBB


LHSA・LHS

SNA・SNM・SNPT


B1

C1

C17

D1

D75

D79

E1

F1

G1

H1

I1

I53

I81

I99

J1

K1

K29

K45

K55

L1







Roller Bearings

Thrust Bearings


Inner Rings

Cam Followers


Roller Followers



Spherical Bushings

Pilloballs

L-balls



TA・TLA・BA・BHA

KT

KT…EG・KTV…EG


TAF…/SG

NAF





CF…B・CFKR・CFS・NUCF…B・CR

CF…/SG


NART…/SG


SB・GE・SBB


LHSA・LHS

SNA・SNM・SNPT


B1

C1

C17

D1

D75

D79

E1

F1

G1

H1

I1

I53

I81

I99

J1

K1

K29

K45

K55

L1







Roller Bearings

Thrust Bearings


Inner Rings

Cam Followers


Roller Followers



Spherical Bushings

Pilloballs

L-balls



B

B1 B2

Shell Type Caged Needle Roller Bearings

Shell Type Grease Retained Full Complement Needle Roller Bearings

Structure and featuresIKO Shell Type Needle Roller Bearings are light-weight bearings with large load ratings. They employ a shell type outer ring made from a thin special-steel plate which is accurately drawn, carburized and quenched, thus providing the lowest sectional height among the needle roller bearings.There are two types of bearings available in this series; the caged type and the full complement type. The appropriate type can be selected according to the operating conditions. The caged type has a structure in which the needle rollers are accurately guided by the cage and thrust rings. It is useful for applications at high-speed rotation. The full complement type nee-dle roller bearing, on the other hand, is suitable for heavy-load applications at low-speed rotation.Since these bearings are press-fitted into the housing, no fixtures for axial positioning are needed. They are ideal for use in mass-produced articles that require economy, and have a wide variety of applications.

Structures of Shell Type Needle Roller Bearings

Standard Caged Type

Caged and closed end type

Caged type with two seals

Grease retained full complement type

Outer ring

Thrust ring

Cage

Needle Roller

Outer ring

Thrust ring

Cage

Needle Roller

Outer ring

Thrust ring

Cage

Seal

Outer ring

Needle Roller

Needle Roller

1N=0.102kgf=0.2248lbs.1mm=0.03937inchB3 B4

B TypesNumerous varieties of Shell Type Needle Roller Bearings are available as shown in Table 1.

Shell Type Caged Needle Roller Bearings

Standard typeThis type has a narrow gap between the bore of the marked-side flange of the outer ring (brand, bearing number, etc. are marked) and the shaft, which pre-vents grease leaks and the entry of foreign particles. This type has wide applications.

Closed end typeThis type is completely closed on one side of the outer ring, and is ideal for use when perfect closing of shaft ends is desired.The shape of the closed end surface of the outer ring

is divided into two types, and the dimensions t1 and t2 in the illustrations shown in the dimension tables apply to the bearings with the roller set bore diame-

ters, Fw > 22 and Fw ≦ 22, respectively.

Type with seals at both sidesThis type has a wider outer ring than the standard type and is installed with seals consisting of a rein-forcing ring and special synthetic rubber to prevent grease leaks and the entry of foreign particles.

Shell Type Grease Retained Full Complement Needle Roller Bearings

This type has full complement rollers which extend to the full width of the outer ring raceway. It can, there-fore, withstand heavy bearing loads and is most suit-able for low and medium rotational speeds as well as rocking motions. As lubricating grease is prepacked with the rollers, the bearing can be operated immedi-ately after being fitted.

Table 1 Type of bearing Type

Series

Metric series

Inch series

−Heavy duty

−Heavy duty

TLA … Z

TA … Z

BA … Z

BHA … Z

TLAM

TAM

BAM

BHAM

TLA … UU

−

−

−

YTL

YT

YB

YBH

Caged Full complement

Standard Closed end With seals （1）Grease retained

Note(1)　 When the heavy duty type with seals or the closed end type with one seal is required, please consult IKO.

Remark　 A "W" is added to the model code to indicate that the rolling elements are of the double-row type.

　　　　 Example　TAW 5045 Z

Identification NumberThe identification number of Shell Type Needle Roller Bearings consists of a model code and dimensions. Examples of the arrangement are shown below.When using with inner rings, the assembled inner rings shown in the dimension tables are used. An example in this case is also shown below. Inner rings are delivered separately.

AccuracyThe outer rings of Shell Type Needle Roller Bearings are thin and therefore cannot avoid deformation due to heat treatment. It is thus not appropriate to take direct measurements of the bearing. The roller set bore diameter is measured using a plug gauge or tapered gauge after press-fitting the bearing to a suit-able ring gauge. The gauge specifications are shown in Tables 2.1 and 2.2.Tolerances of outer ring width C are shown in Table 3.

Model code Dimensions

TA 18 Z

Type of bearing

20

Examples of identification number

Example 1

Example 2 (With inner ring)

Identification number ofInner Ring

TA 1820 Z 　　IRT 1520 ＋

Identification number of Shell Type Needle Roller Bearing

Outer ring width（20mm）

Roller set bore diameter（18mm）

Table 2.1 Measuring gauges for metric series bearings

FwNominal roller set

bore diameter

Ring gauge

TA…Z(1) TLA…Z(2) Go No-go

Plug gauge

4

5

6

7

8

9

10

12

13

14

15

16

17

18

19

20

21

22

24

25

26

28

29

30

32

35

37

38

40

45

50

55

60

62

65

70

−

− − −

14.992

15.992

16.992

18.991

− 21.991

21.991

23.991

23.991

24.991

26.991

26.991(4) 27.991(4) 28.991

28.991(5) 29.991(5) 30.989(6) 31.989(6) 32.989

33.989

36.989

37.989

39.989

41.989

44.989

46.989

47.989

49.989

54.988

61.988

66.988

71.988

73.988

76.988

81.987

7.981

8.981

9.981

10.977

11.977

12.977

13.977

15.977(3) 17.977(3) 18.972

19.972

20.972

21.972

22.972

23.972

−

25.972

−

27.972

−

31.967

− 34.967

− 36.967

− 41.967

−

−46.967

51.961

57.961

62.961

−

−

−

−

4.004

5.004

6.004

7.005

8.005

9.005

10.005

12.006

13.006

14.006

15.006

16.006

17.006

18.006

19.007

20.007

21.007

22.007

24.007

25.007

26.007

28.007

29.007

30.007

32.009

35.009

37.009

38.009

40.009

45.009

50.009

55.010

60.010

62.010

65.010

70.010

4.016

5.016

6.016

7.020

8.020

9.020

10.020

12.024

13.024

14.024

15.024

16.024

17.024

18.024

19.028

20.028

21.028

22.028

24.028

25.028

26.028

28.028

29.028

30.028

32.034

35.034

37.034

38.034

40.034

45.034

50.034

55.040

60.040

62.040

65.040

70.040Notes(1)　Also applicable to TAM and YT

(2)　Also applicable to TLAM, YTL, TLA…UU(3)　 The upper value is for TLA 1210Z model, and the lower

value is for TLA 1212Z model.(4)　 The lower value is for TA 202820Z model, and the upper

value is for models other than TA 202820Z model.(5)　 The lower value is for TA 223016Z and TA 223020Z

models, and the upper value is for models other than those models.

(6)　 The lower value is for TA 243216Z and TA 243220Z models, and the upper value is for models other than those models.

unit: mmTable 2.2 Measuring gauges for inch series

bearingsFw

Nominal roller set bore diameter

Ring gauge

BA…Z(1) BHA…Z(2) Go No-go

Plug gauge

3.969

4.762

6.350

7.938

9.525

11.112

12.700

14.288

15.875

17.462

19.050

20.638

22.225

23.812

25.400

26.988

28.575

30.162

31.750

33.338

34.925

38.100

41.275

44.450

47.625

50.800

52.388

53.975

57.150

66.675

69.850

7.155

8.730

11.125

12.713

14.300

15.888

17.475

19.063

20.650

22.238

25.387

26.975

28.562

30.150

31.737

33.325

34.912

38.087

38.087

41.262

41.262

47.612

50.787

53.962

57.137

60.312

− 63.487

66.662

76.187

79.362

−

−

− 14.300

15.888

17.475

19.063

20.650

22.238

23.825

26.975

28.562

30.150

− 33.325

− 38.087

− 41.262

− 44.437

−

−57.137

−−

64.280

−

−

−

−

3.990

4.783

6.388

7.976

9.563

11.151

12.738

14.326

15.913

17.501

19.063

20.650

22.238

23.825

25.413

27.000

28.588

30.175

31.763

33.350

34.938

38.113

41.288

44.463

47.638

50.815

52.413

53.990

57.165

66.700

69.875

4.016

4.808

6.414

8.001

9.588

11.176

12.764

14.351

15.938

17.526

19.088

20.676

22.263

23.851

25.438

27.026

28.613

30.201

31.788

33.378

34.966

38.143

41.318

44.496

47.671

50.848

52.451

54.028

57.203

66.738

69.914

unit: mm

unit: mm

Notes(1)　Also applicable to BAM and YB(2)　Also applicable to BHAM and YBH

Table 3 Tolerances of outer ring width C

Series

Metric

Inch

Tolerance

0 〜− 0.20

0 〜− 0.25


B FitAs the outer ring is thin, the correct dimensions and accuracy of Shell Type Needle Roller Bearings are obtained only after they have been press-fitted into the housing bore. Bearing accuracy is directly affect-ed by housing dimensions, shape and rigidity. This should be taken into account when considering fit and accuracy. The radial clearance after fitting the bear-ing to the shaft and the housing bore varies with their tolerances.

Table 4 shows the recommended fit for Shell Type Needle Roller Bearings.Table 5 shows a calculation example of radial clear-ance after fitting. This calculation applies to bearings without inner ring to be fitted into rigid steel or cast iron housings. When the housing is made of light alloy or a thin steel pipe, it is necessary to check dimensions by actual measurement.Generally, when making the radial clearance smaller, i t is recommended that the shaft diameter be increased, without decreasing the housing bore diam-eter.

Table 4 Recommended fit

Table 5 Calculation example of radial clearance after fitting

Type of bearing

TA … Z，BA … Z，BHA … Z， TAM，BAM，BHAM，YT，YB，YBH

TLA … Z，TLAM，YTL， TLA … UU

Housing material

SteelCast iron h6

h6

h6

h6

k5(j5)

k5(j5)

k5(j5)

k5(j5)

J7

M7(N7)

N7

R7(S7)

Light alloy(Thin steel pipe)

SteelCast iron

Light alloy(Thin steel pipe)

Tolerance class

Shaft (1)

Without inner ring With inner ringHousing bore

Note(1)　 When housings are made of light alloy or a thin steel pipe, the roller set bore diameter is greatly affected by the housing thickness and shape. Therefore, before mass-production assembly, assembly tests should be carried out to confirm the amount of dimensional change and to determine the tolerance of the shaft which will give normal clearances.

Calculation procedure

Dimension of housing bore Max. value of housing bore (Dmax): See the dimension table. Min. value of housing bore (Dmin): See the dimension table.

Dimension of roller set bore diameter of bearing after it has been press-fitted into the housing bore Max. value of roller set bore dia.(Fwe max)＝(Dmax−D0) ＋Fw max Min. value of roller set bore dia.(Fwe min)＝(Dmin−D0) ＋Fw min

Dimension of shaft Max. value of shaft dia. (Fmax): See the dimension table. Min. value of shaft dia. (Fmin ): See the dimension table.

Radial clearance after mounting Max. value of radial clearance(Gr max)＝Fwe max−Fmin Min. value of radial clearance(Gr min) ＝Fwe min−Fmax

From Table 2.1 on page B4D0 ＝25.972Fw max ＝20.028Fw min ＝20.007

From the dimension table on page B14, Dmax＝25.993Dmin ＝25.972

From the equations,Fwe max＝20.049Fwe min ＝20.007

From the dimension table on page B14,Fmax ＝20.000Fmin ＝19.987

From the equations, Gr max ＝0.062 Gr min ＝0.007 The radial clearance after mounting becomes 0.007~0.062 mm.

Example of TLA 2020 Z

unit: mm

D : Housing bore diameterFw : Roller set bore diameterF : Shaft diameterGr : Radial clearance

FG

F w D

r

Dimension of roller set bore diameter of bearing after it has been press-fitted into the ring gauge. Dimension of ring gauge (D0): See Tables 2.1 and 2.2 on page B4. Max. value of roller set bore dia. (Fw max): No-go dimension of plug gauge Min. value of roller set bore dia. (Fw min): Go dimension of plug gauge

1

2

3

4

5

Lubrication Oil HoleBearings with prepacked grease are shown in Table 6. ALVANIA GREASE S2 (Shell Lubricants Japan K.K.) is prepacked as the lubricating grease.In the case of bearings without prepacked grease, perform proper lubrication for use. If the bearings are operated without lubrication, the wear of the roller contact surfaces will increase and the bearing life will be shortened.

For Shell Type Needle Roller Bearings with an oil hole, "OH" is appended to the end of the identification number.

　Example　TA 2525 Z OHThe symbol "OH" is not marked on the bearing itself, but is shown on its packaging, etc. When bearings with multiple oil holes are required, please consult IKO.

MountingShell Type Needle Roller Bearings should be pressed into the housings gently using the appropriate tool as shown in Fig. 1, with their marked end surface up. As the outer ring is thin, it must never be struck directly with a hammer.Since the outer rings of Shell Type Needle Roller Bearings are firmly fitted to housing bores with inter-ference, it is unnecessary to fix them axially. Fig. 2 shows mounting examples.

Specifications of shaft and housingShell Type Needle Roller Bearings are commonly used without an inner ring. In such cases, the surface hardness of the raceway surface should be 58 〜64HRC and the surface roughness should not exceed 0.2 μ mRa. However, when the operating condition is not severe, a surface roughness 0.8μmRa or less can be used.If the surface hardness is low, the load rating must be corrected by the hardness factor shown on page A20. When the shaft cannot be heat treated and finished by grinding, the use of IKO Inner Rings for Shell Type Needle Roller Bearings (See page H1.) is recom-mended.

Static Safety FactorSince Shell Type Needle Roller Bearings employ an outer ring made from a thin steel plate which is drawn, carburized and quenched, excessively large loads must be avoided. The required static safety factor is usually more than 3.

Fig.2 Mounting examples

Fig.1 Example of mounting tool

Table 6 Bearings with prepacked greaseBearing type

Series

Metric series

Inch series

TLA，TLAM，YTL

TA，TAM，YT

BA，BAM，YB

BHA，BHAM，YBH

Full complement

Grease retainedWith sealsClosed endStandard

Caged

××××

××××

〇−−−

〇〇〇〇

〇：With prepacked grease　×：Without prepacked grease

D

Fw

-0.2-0.3

15°

-0.025


B

Note(1) 　 Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remark　 Shell Type Grease Retained Full Complement Needle Roller Bearings are provided with prepacked grease. Standard type and closed

end type bearings are not provided with prepacked grease, so perform proper lubrication when using these types of bearings.

Shaftdia.

mm

Identification number

Mass (Ref. )

g

Standard

4

5

6

7

8

9

10

TA 810 ZTA 815 ZTA 820 Z

TA 912 ZTA 916 Z

TA 1010 ZTA 1012 ZTA 1015 ZTA 1020 Z

6.7 9.7 12.9

8.7 11.4

7.9 9.3 11.5 15.4

TAM 810TAM 815TAM 820

TAM 912TAM 916

TAM 1010TAM 1012TAM 1015TAM 1020

7.1 10.1 13.3

9.2 11.9

8.5 10 12.2 16

TLA 48 Z

TLA 59 Z

TLA 69 Z

TLA 79 Z

TLA 810 Z

TLA 910 ZTLA 912 Z

TLA 1010 ZTLA 1012 ZTLA 1015 Z

1.54

1.9

2.2

2.5

3.1

3.4 4

3.7 4.4 5.5

TLAM 48

TLAM 59

TLAM 69

TLAM 79

TLAM 810

TLAM 910TLAM 912

TLAM 1010TLAM 1012TLAM 1015

1.67

2

2.3

2.7

3.3

3.6 4.3

4 4.8 5.9

YTL 48

YTL 59

YT 810

YT 912

1.73

2.4

7.7

10.1

Mass (Ref. )

g

Closed end Mass (Ref. )

g

Standard Mass (Ref. )

g


g

Grease retained

Shaft dia. 4− 10mm

SHELL TYPE NEEDLE ROLLER BEARINGS

4.000

5.000

6.000

7.000

8.000

8.000

9.000

9.000

10.000

10.000

3.992

4.992

5.992

6.991

7.991

7.991

8.991

8.991

9.991

9.991

15.010

16.010

17.010

14.992

15.992

16.992

7.996

8.996

9.996

10.995

11.995

12.995

13.995

7.981

8.981

9.981

10.977

11.977

12.977

13.977

1 3503 010

1 8804 320

2 100

2 490

3 320

3 4705 7808 3407 530

3 5004 460

5 1406 9609 690

3 8704 9206 390

4 1505 5906 9209 990

1 0102 900

1 6004 750

1 900

2 450

3 670

2 8805 5708 9207 950

4 0405 510

4 8807 210

11 200

4 7406 4609 040

3 7805 5407 300

11 700

75 00040 000

65 00030 000

55 000

50 000

45 000

45 00045 00045 00019 000

45 00045 000

45 00045 00017 000

40 00040 00040 000

40 00040 00040 00040 000


C

N


C0

N

Allowable rotational speed(1)

min-1

44

55

6

7

8

8888

99

999

101010

10101010

88

99

10

11

12

15151515

1313

161616

141414

17171717

88

99

9

9

10

10152010

1012

121612

101215

10121520

Fw D

Assembled inner ring

IRT 710IRT 712IRT 715


C

1

1

1

1

1

1.31.31.3

11

1.31.3

111

1.31.31.31.3

t2Max.

TA … Z　TLA … Z TAM TLAM YT YTL

Standard mounting dimensions　mm

Max. Min. Max. Min.J7

Housing bore dia.

Max. Min.N7h6

Shaft dia.

Boundary dimensionsmm

D

C

Fw D

C

Fw

t2

D

C

Fw


BSHELL TYPE NEEDLE ROLLER BEARINGS

Note(1) 　Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remark　 Shell Type Grease Retained Full Complement Needle Roller Bearings are provided with prepacked grease. Standard type and closed


Shaftdia.

mm


Mass (Ref. )

g

Standard

12

13

14

15

TA 1212 ZTA 1215 ZTA 1220 ZTA 1225 Z

TA 1416 ZTA 1420 Z

TA 1510 ZTA 1512 ZTA 1515 ZTA 1520 ZTA 1525 Z

10.5 13.1 17.3 21.5

18.4 23

10.8 12.9 15.9 21 25

TAM 1212TAM 1215TAM 1220TAM 1225

TAM 1416TAM 1420

TAM 1510TAM 1512TAM 1515TAM 1520TAM 1525

11.5 14 18.3 22.5

19.6 24

12.3 14.3 17.3 22.5 26.5

TLA 1210 Z

TLA 1212 Z

TLA 1312 Z

TLA 1412 ZTLA 1416 Z


4.3

8.6

9.2

9.8 13.2

10.4 14 19.1

TLAM 1210

TLAM 1212

TLAM 1312

TLAM 1412TLAM 1416


4.7

9.4

10.1

10.8 14.3

11.5 15.2 20.5

YTL 1210

YT 1212

5.1

12.8

Mass (Ref. )

g


g


g


g

Grease retained


12.000

12.000

12.000

13.000

14.000

14.000

15.000

15.000

11.989

11.989

11.989

12.989

13.989

13.989

14.989

14.989

15.995

17.995

18.993

19.993

20.993

15.977

17.977

18.972

19.972

20.972

19.012

22.012

22.012

18.991

21.991

21.991

4 3507 470

6 420

6 0007 440

10 70013 80011 800

6 760

7 0808 950

10 50013 900

7 3809 330

13 600

5 2907 1208 830

12 70016 300

5 81011 800

7 490

6 3108 320

13 30018 30015 200

8 170

8 84012 000

12 00017 200

9 52012 90020 900

5 6808 310

11 00017 60024 200

35 00013 000

35 000

35 00035 00035 00035 00013 000

30 000

30 00030 000

30 00030 000

25 00025 00025 000

25 00025 00025 00025 00025 000


C

N


C0

N


min-1

1212

12

1212121212

13

1414

1414

151515

1515151515

1616

18

1919191919

19

2020

2222

212121

2222222222

1010

12

1215202512

12

1216

1620

121622

1012152025

Fw D


IRT 810IRT 810

IRT 812

IRT 812IRT 815

IRT 812

IRT 1012

IRT 1012-2IRT 1016-2

IRT 1016-2IRT 1020-2

IRT 1212IRT 1216IRT 1222

IRT 1010-1IRT 1012-1IRT 1015-1IRT 1020-1IRT 1025-1

C

1

1.3

1.31.31.31.3

1.3

1.31.3

1.31.3

1.31.31.3

1.31.31.31.31.3

t2Max.





Housing bore dia.

Max. Min.N7h6

Shaft dia.

D

C

Fw D

C

Fw

t2

D

C

Fw





Shaftdia.

mm


Mass (Ref. )

g

Standard

17

18

19

TA 1715 ZTA 1720 ZTA 1725 Z

TA 1813 ZTA 1815 ZTA 1817 ZTA 1819 ZTA 1820 ZTA 1825 Z

TA 1916 ZTA 1920 Z

20 25

17.6 23.5 29

16.4 18.5 21 23.5 24.5 30.5

23 29

TAM 1715TAM 1720TAM 1725

TAM 1813TAM 1815TAM 1817TAM 1819TAM 1820TAM 1825

TAM 1916TAM 1920

19.5 25 31

18.5 20.5 23 25.5 26.5 32.5

25.5 31

TLA 1712 Z


11.5

12 16.2

TLAM 1712

TLAM 1812TLAM 1816

YT 1715YT 1725

13

13.7 17.9

20.5 35.5

Mass (Ref. )

g


g


g


g

Grease retained

16

TA 1616 ZTA 1620 Z

22 27

TAM 1616TAM 1620

10.9 14.8 20


12.2 16.1 21.5



17.000

17.000

18.000

18.000

19.000

16.989

16.989

17.989

17.989

18.987

24.012

25.012

27.012

23.991

24.991

26.991

22.993

23.993

22.972

23.972

7 960

9 66013 90017 90016 60027 200

8 23010 400

9 10010 10011 90013 70014 50018 600

12 20016 100

25 000

25 00025 00025 0009 0009 000

20 00020 000

20 00020 00020 00020 00020 00020 000

20 00020 000


C

N


C0

N


min-1

17

161616

1616

222222

2424

121622

1620

1.31.31.3

16.000 15.989 21.993 21.9727 6709 700

14 200

10 900

12 70020 40028 10026 00049 000

11 50015 600

12 00013 60016 90020 20021 80030 000

15 70022 600

10 20013 80022 400

25 00025 00025 000

IRT 1212-1IRT 1216-1IRT 1222-1

1.31.3

16.000 15.989 24.012 23.991 11 10014 700

13 30019 100

25 00025 000

IRT 1216-1IRT 1220-1

1717171717

1818

181818181818

1919

23

2424242424

2424

252525252525

2727

12

1520251525

1216

131517192025

1620

Fw D



IRT 1512IRT 1516

IRT 1513IRT 1515IRT 1517IRT 1519IRT 1520IRT 1525

IRT 1516-1IRT 1520-1

C

1.3

1.31.31.3

1.31.3

1.31.31.31.31.31.3

1.31.3

t2Max.

TA … Z　TLA … Z TAM TLAM YT




Housing bore dia.

Max. Min.N7h6

Shaft dia.

D

C

Fw D

C

Fw

t2

D

C

Fw


B

TA 2116 ZTA 2120 Z

TAM 2116TAM 2120

25 31.5

28 34.5




Shaftdia.

mm


Mass (Ref. )

g

Standard

20

21

TA 2015 ZTA 2020 ZTA 2025 ZTA 2030 Z

TA 202820 Z

20 26.5 33 39.5

30

TAM 2015TAM 2020TAM 2025TAM 2030

TAM 202820

22.5 29 35.5 42

32.5

YT 2015YT 2025

YT 202820

YT 2116YT 2120

23.5 41

37.5

TLA 2012 ZTLA 2016 ZTLA 2020 ZTLA 2030 Z

13.2 17.8 22 33

TLAM 2012TLAM 2016TLAM 2020TLAM 2030

15.2 19.9 24 35

Mass (Ref. )

g


g


g


g

Grease retained

31 39


20.000

20.000

20.000

21.000

19.987

19.987

19.987

20.987

27.012

28.012

29.012

26.991

27.991

28.991

25.993

25.972

8 74011 10014 50022 300

10 40015 00019 20023 10018 40030 000

16 90026 800

13 30017 60022 10027 500

12 90017 50024 70042 900

14 60023 40032 20041 00030 90058 300

24 30044 600

18 10025 90035 20046 800

20 00020 00020 00020 000

20 00020 00020 00020 0007 5007 500

20 0007 500

19 00019 0007 0007 000


C

N


C0

N


min-1

20202020

202020202020

2020

21212121

26262626

272727272727

2828

29292929

12162030

152025301525

2020

16201620

Fw D


IRT 1716IRT 1720IRT 1730

IRT 1515-2IRT 1520-2IRT 1525-2IRT 1530-2IRT 1515-2IRT 1525-2

IRT 1520-2IRT 1520-2

IRT 1716-1IRT 1720-1IRT 1716-1IRT 1720-1

C

1.31.31.31.3

1.31.31.31.3

1.3

1.31.3

t2Max.





Housing bore dia.

Max. Min.N7h6

Shaft dia.

D

C

Fw D

C

Fw

t2

D

C

Fw





Shaftdia.

mm


Mass (Ref. )

g

Standard

22

24


TA 223016 ZTA 223020 Z

TA 2420 ZTA 2428 Z

TA 243216 ZTA 243220 Z

15 21.5 29 35.5 42.5

26 32.5

31 43.5

28 35.5


TAM 223016TAM 223020

TAM 2420TAM 2428

TAM 243216TAM 243220

18.1 24.5 32 38.5 45.5

29 35.5

35 47

32 39


15.6 21.5 26.5


18.1 24 29

YT 223016YT 223020

YT 2428

YT 243216YT 243220

32 40.5

54

34.5 43.5

Mass (Ref. )

g


g


g


g

Grease retained


22.000

22.000

22.000

24.000

24.000

21.987

21.987

21.987

23.987

23.987

29.012

30.012

31.014

32.014

28.991

29.991

30.989

31.989

27.993

27.972

9 23011 70015 300

6 65011 10016 00019 70023 800

13 20017 50022 60028 200

17 00024 50036 800

14 20018 80023 70029 500

14 30019 30027 300

8 50016 40026 30034 30043 700

18 20026 10036 80048 900

29 20046 70079 900

20 50029 40040 10053 200

18 00018 00018 000

18 00018 00018 00018 00018 000

18 00018 0007 0007 000

16 00016 0006 500

16 00016 0006 5006 500


C

N


C0

N


min-1

222222

2222222222

22222222

242424

24242424

282828

2929292929

30303030

313131

32323232

121620

1015202530

16201620

202828

16201620

Fw D


IRT 1716-2IRT 1720-2


IRT 1716-2IRT 1720-2IRT 1716-2IRT 1720-2

IRT 2020IRT 2028IRT 2028

IRT 2016IRT 2020IRT 2016IRT 2020

C

1.31.31.3

1.31.31.31.31.3

1.31.3

3.43.4

3.43.4

t1，t2Max.

TA … Z　TLA … Z TAM TLAMt1 (Fw≧24)t2 (Fw≦22)

YT




Housing bore dia.

Max. Min.N7h6

Shaft dia.

D

C

Fw D

C

FwD

t

t

2

1

C

Fw



Note(1)　　 Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remarks1.　 "W" in the identification number indicates that rolling elements are arranged in double rows. 2.　 Shell Type Grease Retained Full Complement Needle Roller Bearings are provided with prepacked grease. Standard type and

closed end type bearings are not provided with prepacked grease, so perform proper lubrication when using these types of bearings.

Shaftdia.

mm


Mass (Ref. )

g

Standard

25


TA 2616 ZTA 2620 Z

TA 2820 ZTA 2830 Z

19.1 28.5 36.5 45.5 54.5

30.5 38

45 67.5


TAM 2616TAM 2620

TAM 2820TAM 2830

23 32.5 40.5 49 58.5

34.5 42.5

50 72.5

TLA 2512 ZTLA 2516 ZTLA 2520 ZTLA 2526 ZTLAW2538Z


19.7 26 32 41.5 58.5

28.5 35.5

TLAM 2512TLAM 2516TLAM 2520TLAM 2526TLAMW2538

TLAM 2816TLAM 2820

23.5 29.5 36 45.5 62

33.5 40.5

YTL 2526

YT 2510YT 2515YT 2520YT 2525

YT 2616YT 2620

YT 2820

51.5

22.5 33 45 57

37 46.5

56.5

Mass (Ref. )

g


g


g


g

Grease retained

26

28


25.000

25.000

25.000

26.000

28.000

28.000

24.987

24.987

24.987

25.987

27.987

27.987

33.014

33.014

34.014

37.014

32.989

32.989

33.989

36.989

31.992

34.992

31.967

34.967

9 44012 80016 90022 60028 90035 000

7 99013 40019 50024 10029 100

15 50022 70030 20037 200

15 20020 10024 70030 800

13 80018 300

21 20033 00034 700

13 90020 50029 30042 50058 50075 800

9 90019 30031 10040 80052 000

23 60038 30055 40072 500

22 90032 80043 30057 500

23 50033 600

32 30056 90061 700

15 00015 00015 00015 00015 0006 000

15 00015 00015 00015 00015 000

6 0006 0006 0006 000

15 00015 0006 0006 000

13 00013 000

13 00013 000

5 500


C

N


C0

N


min-1

252525252525

2525252525

25252525

26262626

2828

282828

323232323232

3333333333

33333333

34343434

3535

373737

121620263826

1015202530

10152025

16201620

1620

203020

Fw D


IRT 2020-1IRT 2026-1IRT 2038-1IRT 2026-1


IRT 2010-1IRT 2015-1IRT 2020-1IRT 2025-1

IRT 2216IRT 2220IRT 2216IRT 2220

IRT 2220-1

IRT 2220-1IRT 2230-1IRT 2220-1

C

2.82.82.82.82.8

3.43.43.43.43.4

3.43.4

2.82.8

3.43.4

t1Max.





Housing bore dia.

Max. Min.N7h6

Shaft dia.

D

C

Fw D

C

FwD

C

Fw

t1



Note(1)　　 Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remarks1.　"W" in the identification number indicates that rolling elements are arranged in double rows. 2.　 Shell Type Grease Retained Full Complement Needle Roller Bearings are provided with prepacked grease. Standard type and


Shaftdia.

mm


Mass (Ref. )

g

Standard

29

30

32

35

TA 2920 ZTA 2930 Z


TA 3220 ZTA 3230 Z


47 70

36.5 42 54.5 68 80

57.5 86

38.5 48 62.5 78 97

TAM 2920TAM 2930


TAM 3220TAM 3230


52 75.5

42.5 47.5 60 73.5 85.5

63.5 97.5

46 56 70 85.5 105

TLA 3012 ZTLA 3016 ZTLA 3018 ZTLA 3020 ZTLA 3026 ZTLAW3038 Z


23.5 30.5 34.5 38 49 69

27 35 43.5

TLAM 3012TLAM 3016TLAM 3018TLAM 3020TLAM 3026TLAMW3038


29 36 40 43.5 54.5 74.5

34.5 42.5 51

YT 2920

YT 3220

58.5

71.5

Mass (Ref. )

g


g


g


g

Grease retained


29.000

30.000

30.000

32.000

35.000

35.000

28.987

29.987

29.987

31.984

34.984

34.984

38.014

40.014

42.014

45.014

37.989

39.989

41.989

44.989

36.992

41.992

36.967

41.967

22 00034 20035 500

10 40014 10016 40018 60024 80031 900

13 50016 80024 50031 60036 700

25 40039 50039 900

11 60015 70020 700

14 80018 50027 00034 80040 600

34 20060 30064 100

16 60024 50029 80035 10050 90070 200

16 80022 40036 30050 30060 700

38 60068 40070 100

20 00029 60042 300

19 90026 50043 10059 70072 600

13 00013 0005 000

12 00012 00012 00012 00012 00012 000

12 00012 00012 00012 00012 000

11 00011 0004 500

10 00010 00010 000

10 00010 00010 00010 00010 000


C

N


C0

N


min-1

292929

303030303030

3030303030

323232

353535

3535353535

383838

373737373737

4040404040

424242

424242

4545454545

203020

121618202638

1315202530

203020

121620

1215202530

Fw D


IRT 2520IRT 2530IRT 2520

IRT 2520-1IRT 2526-1IRT 2538-1

IRT 2515-1IRT 2520-1IRT 2525-1IRT 2530-1

IRT 2820IRT 2830IRT 2820

IRT 3012

IRT 3020

IRT 3012IRT 3015IRT 3020IRT 3025IRT 3030

C

3.43.4

2.82.82.82.82.82.8

3.43.43.43.43.4

3.43.4

2.82.82.8

3.43.43.43.43.4

t1Max.





Housing bore dia.

Max. Min.N7h6

Shaft dia.

D

C

Fw D

C

FwD

C

Fw

t1





Shaftdia.

mm


Mass (Ref. )

g

Standard

37

38

40

45

TA 3720 ZTA 3730 Z

TA 3815 ZTA 3820 ZTA 3825 ZTA 3830 ZTAW 3845 Z


TA 4520 ZTA 4525 ZTA 4530 ZTA 4540 Z

64.5 101

51 65.5 82.5 104 149

54 69.5 86.5 110 144

77 102 122 161

TAM 3720TAM 3730

TAM 3815TAM 3820TAM 3825TAM 3830TAMW 3845


TAM 4520TAM 4525TAM 4530TAM 4540

73 110

60 74.5 96 114 159

63.5 79 102 120 154

90 115 135 174



30 39 49

43.5 54.5


TLAM 4516TLAM 4520

40 49 58.5

56 67

YT 3720

YT 4015YT 4025

YT 4520YT 4525

81

63.5 109

96 122

Mass (Ref. )

g


g


g


g

Grease retained


37.000

38.000

40.000

40.000

45.000

45.000

36.984

37.984

39.984

39.984

44.984

44.984

47.014

48.014

50.014

55.018

46.989

47.989

49.989

54.988

46.992

51.991

46.967

51.961

27 80041 80043 300

19 00027 70035 60043 10055 700

12 40016 70022 100

19 50028 40036 60044 30056 70033 40055 300

17 80023 400

30 60039 40047 70061 30047 80059 100

9 5009 5004 000

9 0009 0009 0009 0009 000

8 5008 5008 500

8 5008 5008 5008 5008 5004 0004 000

7 5007 500

7 5007 5007 5007 5003 5003 500

45 40076 70081 300

28 00045 60063 10080 600

112 000

22 80033 70048 200

29 40047 80066 20084 600

116 00059 800

114 000

37 80054 000

54 60075 60096 600

133 00098 200

129 000


C

N


C0

N


min-1

373737

3838383838

404040

40404040404040

4545

454545454545

474747

4848484848

474747

50505050505050

5252

555555555555

203020

1520253045

121620

15202530401525

1620

202530402025

Fw D


IRT 3220IRT 3230IRT 3220


IRT 3520

IRT 3515IRT 3520IRT 3525IRT 3530IRT 3540IRT 3515IRT 3525

IRT 4020

IRT 4020IRT 4025IRT 4030IRT 4040IRT 4020IRT 4025

C

3.43.4

3.43.43.43.43.4

2.82.82.8

3.43.43.43.43.4

2.82.8

3.43.43.43.4

t1Max.

TA … Z　TLA … Z TAM　TLAM YT




Housing bore dia.

Max. Min.N7h6

Shaft dia.

D

C

Fw D

C

Fw

t1

D

C

Fw





Shaftdia.

mm


Mass (Ref. )

g

Standard

50

55

60

62

TA 5012 ZTA 5015 ZTA 5020 ZTA 5025 ZTA 5030 ZTA 5040 ZTAW 5045 Z

TA 5520 ZTA 5525 ZTA 5530 ZTA 5540 ZTAW 5545 ZTAW 5550 Z

TA 6025 ZTA 6030 ZTA 6040 ZTAW 6045 ZTAW 6050 Z

TA 6212 Z

62.5 78 107 134 161 210 230

116 145 175 230 250 280

158 191 250270 305

78

TAM 5012TAM 5015TAM 5020TAM 5025 TAM 5030TAM 5040TAMW 5045

TAM 5520TAM 5525TAM 5530TAM 5540TAMW 5545TAMW 5550

TAM 6025TAM 6030TAM 6040TAMW 6045TAMW 6050

TAM 6212

78 98.5 123 150 178 230 245

136 165 195 250 270 300

182 215 275 295 330

107



69 86

75 98.5

TLAM 5020TLAM 5025

TLAM 5520TLAM 5525

84.5 107

98.5 118

Mass (Ref. )

g


g


g


g

Grease retained


50.000

50.000

55.000

55.000

60.000

62.000

49.984

49.984

54.981

54.981

59.981

61.981

62.018

67.018

72.018

74.018

61.988

66.988

71.988

73.988

57.991

62.991

57.961

62.961

28 80036 900

17 70025 80038 00049 10059 50076 50076 700

29 80038 300

39 60051 20062 00080 00079 90091 500

54 70066 30085 70085 40097 800

20 100

6 5006 500

6 5006 5006 5006 5006 5006 5006 500

5 5005 500

5 5005 5005 5005 5005 5005 500

5 0005 0005 0005 0005 000

4 500

64 10088 400

24 00039 00064 00089 000

114 000157 000158 000

69 40095 700

69 70097 000

124 000172 000172 000205 000

108 000139 000193 000193 000229 000

30 300


C

N


C0

N


min-1

5050

50505050505050

5555

555555555555

6060606060

62

5858

62626262626262

6363

676767676767

7272727272

74

2025

12152025304045

2025

202530404550

2530404550

12

Fw D


IRT 4520IRT 4525


IRT 5020-1IRT 5025-1

IRT 5020-1IRT 5025-1IRT 5030-1IRT 5040-1IRT 5045-1IRT 5050-1


IRT 5212

C

2.82.8

3.43.43.43.43.43.43.4

2.82.8

3.43.43.43.43.43.4

3.43.43.43.43.4

3.4

t1Max.

TA … Z　TLA … Z TAM　TLAM




Housing bore dia.

Max. Min.N7h6

Shaft dia.

D

C

Fw D

C

Fw

t1





Shaftdia.

mm


Mass (Ref. )

g

Standard

65

70

TA 6525 ZTA 6530 ZTAW 6545 ZTAW 6550 Z

TA 7025 ZTA 7030 ZTA 7040 ZTAW 7050 Z

169205290330

181220290350

TAM 6525TAM 6530TAMW 6545TAMW 6550

TAM 7025TAM 7030TAM 7040TAMW 7050

197230315355

215250320380

Mass (Ref. )

g


g


g


g

Grease retained


65.000

70.000

64.981

69.981

77.018

82.022

76.988

81.987

56 50068 50088 300

101 000

58 50070 90092 000

105 000

116 000149 000207 000246 000

124 000159 000222 000262 000

4 0004 0004 0004 000

3 5003 5003 5003 500


C

N


C0

N


min-1

65656565

70707070

77777777

82828282

25304550

25304050

Fw D


IRT 5525IRT 5530IRT 5545IRT 5550

IRT 6025IRT 6030IRT 6040IRT 6050

C

3.43.43.43.4

3.43.43.43.4

t1Max.

TA … Z TAM




Housing bore dia.

Max. Min.N7h6

Shaft dia.

D

C

Fw D

C

Fw

t1


B

3.8

1.6


Inch Series

YB 2.5 2.5YB 2.5 4

33.64.35.4

3.54.25.76.37

2.12.53.5

3.33.94.65.7

3.94.66.16.77.4

2.73.7

6.3

6.6

8.6

Shaft dia.

mm(inch)



Standard Closed end Standard Closed end Grease retainedMass (Ref. )

g

Mass (Ref. )

g

Mass (Ref. )

g

Mass (Ref. )

g

Mass (Ref. )

g


3.969（ 532）

3.45.37.29.1

3.24.6

0.640.96

YB 344.762

（ 316）BA 44BA 45 ZBA 47 Z

BAM 45BAM 47

YB 45YB 47

6.350（ 14）

BA 55 ZBA 56 ZBA 57 ZBA 59 Z

BAM 55BAM 56BAM 57BAM 59

YB 55

7.938（ 516）

BA 65 ZBA 66 ZBA 68 ZBA 69 ZBA 610 Z

BAM 65BAM 66BAM 68BAM 69BAM 610

9.525

（ 38）

BHA 57 Z BHAM 57

YB 64YB 66YB 68YB 610

BHA 68 Z BHAM 68 8.2

Shaft dia. 3.969− 9.525mm

9.525（ 3 8）

7.938（ 516）

3.969（ 532）3.969（ 532）

15.875（ 5 8）

14.288（ 916）

7.144（ 932） 7.144（ 932）

12.70(.500)

11.13(.438)

3.96(.156) 6.35(.250)

1.3

1.3

9.525

7.938

3.969

9.516

7.929

3.961

15.885

14.298

7.152

15.867

14.280

7.137

4 880

4 150

1 3502 320

4 740

3 730

1 2202 440

40 000

45 000

40 00040 000

4.762（ 316） 8.731（1132） 6.35(.250) 4.762 4.754 8.739 8.724 2 770 2 700 30 000

6.350（ 1 4）6.350（ 1 4）6.350（ 1 4）6.350（ 1 4）6.350（ 1 4）

11.112（ 716）11.112（ 716）11.112（ 716）11.112（ 716）11.112（ 716）

6.35(.250) 7.92(.312)11.13(.438) 7.92(.312)11.13(.438)

111

6.350 6.341 11.122 11.104

1 7701 5102 6504 4506 320

1 3901 1202 3104 8707 650

55 00055 00055 00025 00025 000

7.938（ 516）7.938（ 516）7.938（ 516）7.938（ 516）7.938（ 516）

12.700（ 1 2）12.700（ 1 2）12.700（ 1 2）12.700（ 1 2）12.700（ 1 2）

7.92(.312) 9.52(.375)11.13(.438)14.27(.562) 7.92(.312)

1111

7.938 7.929 12.710 12.692

1 8802 6203 3104 1905 110

1 5602 3903 2204 3606 090

45 00045 00045 00045 00020 000

9.525（ 3 8）

9.525（ 3 8）

9.525（ 3 8）

9.525（ 3 8）

9.525（ 3 8）

14.288（ 916）

14.288（ 916）

14.288（ 916）

14.288（ 916）

14.288（ 916）

7.92(.312) 9.52(.375)12.70(.500)14.27(.562)15.88(.625)

11111

9.525 9.516 14.298 14.280

2 2203 0904 1904 9405 660

2 0103 0804 5605 6306 700

40 00040 00040 00040 00040 000

9.525（ 3 8）

9.525（ 3 8）

9.525（ 3 8）

9.525（ 3 8）

14.288（ 916）

14.288（ 916）

14.288（ 916）

14.288（ 916）

6.35(.250) 9.52(.375)12.70(.500)15.88(.625)

9.525 9.516 14.298 14.2804 4706 9209 210

11 300

5 3609 410

13 60017 800

16 00016 00016 00016 000


C

N


C0

N


min-1

Boundary dimensions　mm(inch)

Fw D C


Max. Min. Max. Min.

Shaft dia.

h6

Housing bore dia.

J7t2Max.

Assembledinner ring

BA … Z BHA … Z BAM BHAM YB

D

C

Fw D

C

Fw

t2

D

C

Fw



Inch Series

Shaft dia.

mm(inch)




g

Mass (Ref. )

g

Mass (Ref. )

g

Mass (Ref. )

g

Mass (Ref. )

g


BA 76 ZBA 77 ZBA 78 ZBA 710 Z


YB 78

4.45.36.37.28.9

10.6

4.85.66.47.9

11.112（ 716）

5.2 6.17

7.9 9.611.3

5.3 6.27

8.5

9.110.412.515

9.911.313.315.8

4.3 6.7 7.9 9.111.513.9

16

8.2

BHA 78 Z

BHAM 78

YBH 78

9.3

10

10.5

BA 85 ZBA 86 ZBA 87 ZBA 88 ZBA 810 ZBA 812 Z

BAM 85BAM 86BAM 87BAM 88BAM 810BAM 812

12.700（ 12）

YB 84YB 86YB 87YB 88YB 810YB 812

BHA 87 ZBHA 88 ZBHA 810 ZBHA 812 Z

BHAM 87BHAM 88BHAM 810BHAM 812

YBH 810

Shaft dia. 11.112− 12.700mm

11.112（ 716）11.112（ 716）11.112（ 716）11.112（ 716）11.112（ 716）

15.875（ 5 8）15.875（ 5 8）15.875（ 5 8）15.875（ 5 8）15.875（ 5 8）

9.52(.375)11.13(.438)12.70(.500)15.88(.625)12.70(.500)

1 1 1 1

11.112 11.101 15.885 15.867

3 2904 1504 4606 020

10 100

3 4704 6805 1307 550

15 900

35 00035 00035 00035 00014 000

11.112（ 716）11.112（ 716）

17.462（1116）17.462（1116）

12.70(.500)12.70(.500)

1.3

11.112 11.101 17.472 17.454 5 68012 500

5 97015 800

35 00014 000

12.700（ 1 2）12.700（ 1 2）12.700（ 1 2）12.700（ 1 2）12.700（ 1 2）12.700（ 1 2）

17.462（1116）17.462（1116）17.462（1116）17.462（1116）17.462（1116）17.462（1116）

7.92(.312) 9.52(.375)11.13(.438)12.70(.500)15.88(.625)19.05(.750)

1 1 1 1 1 1

12.700 12.689 17.472 17.454

2 4903 4704 3804 7106 3507 840

2 5103 8505 1905 7008 380

11 000

30 00030 00030 00030 00030 00030 000

IRB 58

12.700（ 1 2）

12.700（ 1 2）

12.700（ 1 2）

12.700（ 1 2）

12.700（ 1 2）

12.700（ 1 2）

17.462（1116）

17.462（1116）

17.462（1116）

17.462（1116）

17.462（1116）

17.462（1116）

6.35(.250) 9.52(.375)11.13(.438)12.70(.500)15.88(.625)19.05(.750)

12.700 12.689 17.472 17.454

5 2608 1509 530

10 80013 40015 800

7 15012 60015 30018 10023 70029 300

12 00012 00012 00012 00012 00012 000

IRB 58

12.700（ 1 2）

12.700（ 1 2）

12.700（ 1 2）

12.700（ 1 2）

12.700（ 1 2）

19.050（ 3 4）

19.050（ 3 4）

19.050（ 3 4）

19.050（ 3 4）

19.050（ 3 4）

11.13(.438)12.70(.500)15.88(.625)19.05(.750)15.88(.625)

1.3 1.3 1.3 1.3

12.700 12.689 19.062 19.041

5 6706 0408 830

11 10016 300

6 1206 650

10 90014 50023 500

30 00030 00030 00030 00012 000

IRB 58


C

N


C0

N


min-1


Fw D C t2Max.

Assembledinner ring


Max. Min. Max. Min.

Shaft dia.

h6

Housing bore dia.

J7

BA … Z BHA … Z BAM BHAM YB YBH

D

C

Fw D

C

Fw

t2

D

C

Fw


B

12.614.91824

13.916.219.325

15.3



YBH 108

5.3 7.6 8.710.812.915.117.3

6.5 8.7 9.9121416.218.4

6.71116.9

BA 105 ZBA 107 ZBA 108 ZBA 1010 ZBA 1012 ZBA 1014 ZBA 1016 Z

BAM 105BAM 107BAM 108BAM 1010BAM 1012BAM 1014BAM 1016

YB 105YB 108YB 1012


Shaft dia.

mm(inch)




g

Mass (Ref. )

g

Mass (Ref. )

g

Mass (Ref. )

g

Mass (Ref. )

g


Inch Series



YB 98YB 910YB 912

4.9 5.9 6.9 7.9 9.911.7

14.288（ 916）

5.8 6.8 7.8 8.910.812.6

10.112.715.4

BHA 98 ZBHA 910 ZBHA 912 Z

BHAM 98BHAM 910BHAM 912

11.413.616.3

12.514.717.4

15.875（ 58）

Shaft dia. 14.288− 15.875mm

1.31.31.31.31.31.31.3

15.875 15.864 20.650 20.629

25 00025 00025 00025 00025 00025 00025 0009 5009 5009 500

IRB 68-1

IRB 612-1IRB 714IRB 716

IRB 68-1IRB 612-1

1.31.31.31.3

15.875 15.864 22.237 22.216

25 00025 00025 00025 0009 500

IRB 68-1

IRB 612-1IRB 716IRB 68-1

15.875（ 5 8）15.875（ 5 8）

15.875（ 5 8）

15.875（ 5 8）

15.875（ 5 8）

15.875（ 5 8）

15.875（ 5 8）

15.875（ 5 8）

15.875（ 5 8）

15.875（ 5 8）

15.875（ 5 8）

15.875（ 5 8）

15.875（ 5 8）

15.875（ 5 8）

15.875（ 5 8）

14.288（ 916）14.288（ 916）14.288（ 916）14.288（ 916）14.288（ 916）14.288（ 916）14.288（ 916）14.288（ 916）14.288（ 916）

20.638（1316）20.638（1316）

20.638（1316）

20.638（1316）

20.638（1316）

20.638（1316）

20.638（1316）

20.638（1316）

20.638（1316）

20.638（1316）

22.225（ 7 8）

22.225（ 7 8）

22.225（ 7 8）

22.225（ 7 8）

22.225（ 7 8）

19.050（ 3 4）19.050（ 3 4）19.050（ 3 4）19.050（ 3 4）19.050（ 3 4）19.050（ 3 4）19.050（ 3 4）19.050（ 3 4）19.050（ 3 4）

7.92( .312)11.13( .438)12.70( .500)15.88( .625)19.05( .750)22.22( .875)25.40(1.000) 7.92( .312)12.70( .500)19.05( .750)

12.70( .500)15.88( .625)19.05( .750)25.40(1.000)12.70( .500)

7.92( .312) 9.52( .375)11.13( .438)12.70( .500)15.88( .625)19.05( .750)12.70( .500)15.88( .625)19.05( .750)

1.31.31.31.31.31.3

14.288 14.277 19.062 19.041

2 8705 0405 4207 3209 020

10 70012 3007 580

12 30017 800

6 68010 20012 70017 40015 000

2 7603 8504 8605 2207 0508 690

11 60014 30016 800

3 2206 6607 310

10 70014 10017 50020 80012 20022 70036 600

8 02013 80018 50027 60022 400

2 9704 5606 1406 7409 910

13 00020 40026 70033 000

30 00030 00030 00030 00030 00030 00011 00011 00011 000

IRB 68

IRB 612IRB 68

IRB 612

14.288（ 916）14.288（ 916）14.288（ 916）

20.638（1316）20.638（1316）20.638（1316）

12.70( .500)15.88( .625)19.05( .750)

1.31.31.3

14.288 14.277 20.650 20.6296 3809 280

11 600

7 33011 90015 900

30 00030 00030 000

IRB 68

IRB 612


C

N


C0

N


min-1


Fw D C t2Max.

Assembledinner ring


Max. Min. Max. Min.

Shaft dia.

h6

Housing bore dia.

J7


D

C

Fw D

C

Fw

t2

D

C

Fw



1013.51720.523.527

11.715.218.6222528.5

8.517.822.527

26.5 28.5

7 9.511.814

8.410.813.215.4

18.3

11.913.71619.3

13.515.317.621

Shaft dia.

mm(inch)




g

Mass (Ref. )

g

Mass (Ref. )

g

Mass (Ref. )

g

Mass (Ref. )

g


Inch Series

BA 116 ZBA 118 ZBA 1110 ZBA 1112 Z


YB 111217.462（ 1116）





19.050

（ 34）

YB 124YB 128YB 1210YB 1212

BHA 1212 Z BHAM 1212

Shaft dia. 17.462− 19.050mm

1.3

1.31.31.31.31.31.3

19.050

19.050

19.037

19.037

27.000

25.412

26.979

25.391

IRB 812-1

IRB 88-1IRB 810-1IRB 812-1IRB 814-1IRB 816-1

19.050

19.037 25.412 25.391

IRB 88-1IRB 810-1IRB 812-1

19.050（ 3 4）

19.050（ 3 4）19.050（ 3 4）

19.050（ 3 4）

19.050（ 3 4）

19.050（ 3 4）

19.050（ 3 4）

19.050（ 3 4）

19.050（ 3 4）

19.050（ 3 4）

19.050（ 3 4）

17.462（1116）17.462（1116）17.462（1116）17.462（1116）17.462（1116）

26.988（1 116）

25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）

25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）

22.225（ 7 8）22.225（ 7 8） 22.225（ 7 8）22.225（ 7 8）22.225（ 7 8）

19.05( .750)

9.52( .375)12.70( .500)15.88( .625)19.05( .750)22.22( .875)25.40(1.000)

6.35( .250)12.70( .500)15.88( .625)19.05( .750)

9.52( .375)12.70( .500)15.88( .625)19.05( .750)19.05( .750)

1.31.31.31.3

17.462 17.451 22.237 22.216

16 600

5 0406 9109 500

11 90014 20016 300

7 82016 60020 50024 100

4 5306 1408 280

10 20018 700

22 600

5 8508 780

13 20017 70022 20026 500

10 20026 90035 30043 400

5 9808 850

13 00017 00040 300

20 000

20 000 20 000 20 000 20 000 20 000 20 000

8 0008 0008 0008 000

25 00025 00025 00025 0008 500

IRB 86IRB 88

IRB 812IRB 812

17.462（1116）17.462（1116）17.462（1116）17.462（1116）

23.812（ 1516）23.812（ 1516）23.812（ 1516）23.812（ 1516）

11.13( .438)12.70( .500)15.88( .625)19.05( .750)

1.31.31.31.3

17.462 17.451 23.824 23.803

6 8607 320

10 50013 200

8 5309 270

14 90019 900

25 00025 00025 00025 000

IRB 88

IRB 812


C

N


C0

N


min-1


Fw D C t2Max.

Assembledinner ring


Max. Min. Max. Min.

Shaft dia.

h6

Housing bore dia.

J7


D

C

Fw D

C

Fw

t2

D

C

Fw



11.515.623.5273134.542.5

13.817.82629.533.53744.5

20.53141.5

10.714.518.2222528.535.5

12.616.42023.52730.537.5

14.119.1

2023.528.5

22.525.530.5

30.537

253039.5

27.532.542

39

Shaft dia.

mm(inch)




g

Mass (Ref. )

g

Mass (Ref. )

g

Mass (Ref. )

g

Mass (Ref. )

g


Inch Series



YB 136YB 138

20.638（ 1316）



YBH 1310YBH 1312



YB 148YB 1412YB 1416

22.225（ 78）


BHAM 1410 BHAM 1412BHAM 1416

YBH 1412

Shaft dia. 20.638− 22.225mm

20.638（1316）20.638（1316）20.638（1316）20.638（1316）20.638（1316）20.638（1316）20.638（1316）20.638（1316）20.638（1316）

26.988（1 116）26.988（1 116）26.988（1 116）26.988（1 116）26.988（1 116）26.988（1 116）26.988（1 116）26.988（1 116）26.988（1 116）

9.52( .375)12.70( .500)15.88( .625)19.05( .750)22.22( .875)25.40(1.000)31.75(1.250) 9.52( .375)12.70( .500)

1.31.31.31.31.31.31.3

20.638 20.625 27.000 26.979

5 2307 1709 870

12 40014 70016 90021 20013 00017 400

6 3009 450

14 20019 00023 80028 50038 10020 10029 200

19 00019 00019 00019 00019 00019 00019 0007 5007 500

IRB 98IRB 910IRB 912IRB 914IRB 916IRB 920

IRB 98

20.638（1316）20.638（1316）20.638（1316）20.638（1316）20.638（1316）

28.575（1 1 8）28.575（1 1 8）28.575（1 1 8）28.575（1 1 8）28.575（1 1 8）

12.70( .500)15.88( .625)19.05( .750)15.88( .625)19.05( .750)

1.31.31.3

20.638 20.625 28.587 28.566

9 50013 80017 30022 90027 200

11 20018 20024 40036 30045 300

19 00019 00019 0007 5007 500

IRB 98IRB 910IRB 912IRB 910IRB 912

22.225（ 7 8）

22.225（ 7 8）

22.225（ 7 8）

22.225（ 7 8）

30.162（1 316）30.162（1 316）30.162（1 316）30.162（1 316）

15.88( .625)19.05( .750)25.40(1.000)19.05( .750)

14 30018 00023 60028 200

19 50026 10036 90049 000

18 00018 00018 0007 000

IRB 1012IRB 1016IRB 1012

22.225（ 7 8）

22.225（ 7 8）

22.225（ 7 8）

22.225（ 7 8）

22.225（ 7 8）

22.225（ 7 8）

22.225（ 7 8）

22.225（ 7 8）

22.225（ 7 8）

22.225（ 7 8）

28.575（1 1 8）28.575（1 1 8）28.575（1 1 8）28.575（1 1 8）28.575（1 1 8）28.575（1 1 8）28.575（1 1 8）28.575（1 1 8）28.575（1 1 8）28.575（1 1 8）

9.52( .375)12.70( .500)19.05( .750)22.22( .875)25.40(1.000)28.58(1.125)34.92(1.375)12.70( .500)19.05( .750)25.40(1.000)

3.43.43.4

2.82.82.82.82.82.82.8

22.225

22.225

22.212

22.212

30.176

28.587

30.151

28.566

5 4307 440

12 80015 30017 60019 80024 10018 10026 30033 800

6 74010 10020 40025 50030 50035 60045 70031 40050 70070 200

18 00018 00018 00018 00018 00018 00018 0007 0007 0007 000


IRB 1022IRB 108IRB 1012IRB 1016


C

N


C0

N


min-1


Fw D Ct1t2

Max.

Assembledinner ring


Max. Min. Max. Min.

Shaft dia.

h6

Housing bore dia.

J7

BA … Z BHA … Z YB YBH BAM BHAMt1 (Fw≧22.225)t2 (Fw≦20.638)

D

t

t

2

1

C

FwD

C

Fw D

C

Fw



13.115.417.72226.53135.544

1618.320.52529.533.53846.5

2334.546.5

242833.539.54556.567.5

27313742.54859.571

2944.559.5

16.520.533

192335.5

Shaft dia.

mm(inch)




g

Mass (Ref. )

g

Mass (Ref. )

g

Mass (Ref. )

g

Mass (Ref. )

g


Inch Series

BA 158 ZBA 1510 ZBA 1516 Z

BAM 158BAM 1510BAM 1516

23.812（ 1516）

BA 166 ZBA 167 Z BA 168 ZBA 1610 ZBA 1612 ZBA 1614 ZBA 1616 ZBA 1620 Z

BAM 166BAM 167BAM 168BAM 1610BAM 1612BAM 1614BAM 1616BAM 1620

YB 168YB 1612YB 161625.400

（1）

BHA 168 ZBHA 1610 ZBHA 1612 ZBHA 1614 ZBHA 1616 ZBHA 1620 ZBHA 1624 Z

BHAM 168BHAM 1610BHAM 1612BHAM 1614BHAM 1616BHAM 1620BHAM 1624

YBH 168YBH 1612YBH 1616

BA 1710 ZBA 1716 Z

BAM 1710BAM 1716

23.537

26.988（1 116）

26.540.5

Shaft dia. 23.812− 26.988mm

2.82.82.82.82.82.82.82.83.43.43.43.43.43.43.4

25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）

25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）

23.812（ 1516）23.812（ 1516）23.812（ 1516）

31.750（1 1 4）31.750（1 1 4）31.750（1 1 4）31.750（1 1 4）31.750（1 1 4）31.750（1 1 4）31.750（1 1 4）31.750（1 1 4）31.750（1 1 4）31.750（1 1 4）31.750（1 1 4）

33.338（1 516）33.338（1 516）33.338（1 516）33.338（1 516）33.338（1 516）

33.338（1 516）

33.338（1 516）

33.338（1 516）

33.338（1 516）

33.338（1 516）

30.162（1 316）30.162（1 316）30.162（1 316）

9.52( .375)11.13( .438)12.70( .500)15.88( .625)19.05( .750)22.22( .875)25.40(1.000)31.75(1.250)12.70( .500)19.05( .750)25.40(1.000)

12.70( .500)15.88( .625)19.05( .750)22.22( .875)25.40(1.000)31.75(1.250)38.10(1.500)12.70( .500)19.05( .750)25.40(1.000)

12.70( .500)15.88( .625)25.40(1.000)

2.82.82.8

25.400

25.400

23.812

25.387

25.387

23.799

31.764

33.352

30.176

31.739

33.327

30.151

6 0107 7208 240

11 30014 20016 90019 40024 40019 40028 20036 300

10 20015 30019 30023 00026 40033 20039 40020 90030 70039 900

8 00011 00018 900

8 02011 10012 00018 10024 30030 40036 30048 50036 00058 00080 300

13 10022 10029 70037 20044 50059 60074 40034 10056 10078 400

11 40017 10034 300

15 00015 00015 00015 00015 00015 00015 00015 0006 0006 0006 000

15 00015 00015 00015 00015 00015 00015 0006 0006 0006 000

16 00016 00016 000

IRB 128

IRB 1212IRB 1214IRB 1216IRB 1220IRB 128IRB 1212IRB 1216

IRB 128

IRB 1212IRB 1214IRB 1216IRB 1220

IRB 128IRB 1212IRB 1216

IRB 1110IRB 1116


C

N


C0

N


min-1


Fw D C t1Max.

Assembledinner ring

26.988（1 116）

26.988（1 116）

33.338（1 516）

33.338（1 516）

15.88( .625)25.40(1.000)

2.82.8

26.988 26.975 33.352 33.327 11 60020 000

19 20038 300

14 00014 000


Max. Min. Max. Min.

Shaft dia.

h6

Housing bore dia.

J7


D

C

Fw D

C

FwD

C

Fw

t1


B

32.552

37.557

42.5

BA 1910 ZBA 1916 Z

BAM 1910BAM 1916

YB 1910


Shaft dia.

mm(inch)




g

Mass (Ref. )

g

Mass (Ref. )

g

Mass (Ref. )

g

Mass (Ref. )

g


Inch Series



YB 188YB 1812YB 1816

14.519.529.53948.5

28.575（1 18）

18.1233342.552

25.538.551.5



456067.573.5

496471.578

30.162（1 316）

Shaft dia. 28.575− 30.162mm

30.162（1 316）30.162（1 316）30.162（1 316）


C

N


C0

N


min-1


Fw D C t1Max.

Assembledinner ring

28.575（1 1 8）28.575（1 1 8）28.575（1 1 8）28.575（1 1 8）28.575（1 1 8）28.575（1 1 8）28.575（1 1 8）28.575（1 1 8）

38.100（1 1 2）38.100（1 1 2）38.100（1 1 2）

34.925（1 3 8）34.925（1 3 8）34.925（1 3 8）34.925（1 3 8）34.925（1 3 8）34.925（1 3 8）34.925（1 3 8）34.925（1 3 8）

15.88( .625)25.40(1.000)15.88( .625)

9.52(. 375)12.70( .500)19.05( .750)25.40(1.000)31.75(1.250)12.70( .500)19.05( .750)25.40(1.000)

2.82.8

2.82.82.82.82.8

30.162

28.575

30.146

28.562

38.114

34.939

38.089

34.914

15 00025 80028 400

6 3308 680

15 00020 50025 70020 70030 00038 700

22 50045 30053 600

8 91013 40026 90040 30053 90040 50065 30090 400

12 00012 0005 000

13 00013 00013 00013 00013 0005 5005 5005 500


28.575（1 1 8）28.575（1 1 8）28.575（1 1 8）28.575（1 1 8）

38.100（1 1 2）38.100（1 1 2）38.100（1 1 2）38.100（1 1 2）

19.05( .750)25.40(1.000)28.58(1.125)31.75(1.250)

3.43.43.43.4

28.575 28.562 38.114 38.089

22 50030 90034 90037 100

32 20048 60056 60061 100

13 00013 00013 00013 000

IRB 1412IRB 1416

IRB 1420


Max. Min. Max. Min.

Shaft dia.

h6

Housing bore dia.

J7


D

C

Fw D

C

FwD

C

Fw

t1



28.535.543

3541.549

BA 218 ZBA 2110 ZBA 2112 Z

BAM 218BAM 2110BAM 2112

33.338（1 516）

Shaft dia.

mm(inch)




g

Mass (Ref. )

g

Mass (Ref. )

g

Mass (Ref. )

g

Mass (Ref. )

g


Inch Series



21.52732.54353.5

31.750（1 14）

2631.53747.558

YB 2010YB 2012YB 2016YB 2018YB 2020

3542.5576468



34.549.56681.5

4054.57186.5

Shaft dia. 31.750− 33.338mm

33.338（1 516）33.338（1 516

33.338（1 516）

41.275（1 5 8）

41.275（1 5 8）

41.275（1 5 8）

12.70( .500)15.88( .625)19.05( .750)

2.82.82.8

33.338 33.322 41.289 41.26411 10015 40019 300

15 80023 90032 100

11 00011 00011 000

IRB 168-1IRB 1610-1IRB 1612-1


C

N


C0

N


min-1


Fw D C t1Max.

Assembledinner ring

31.750（1 1 4）31.750（1 1 4）31.750（1 1 4）31.750（1 1 4）31.750（1 1 4）

38.100（1 1 2）38.100（1 1 2）38.100（1 1 2）

38.100（1 1 2）38.100（1 1 2）

12.70( .500)15.88( .625)19.05( .750)25.40(1.000)31.75(1.250)

2.82.82.82.82.8

31.750 31.734 38.114 38.089

9 10012 50015 70021 50026 900

14 70022 20029 60044 30059 200

12 00012 00012 00012 00012 000


31.750（1 1 4）31.750（1 1 4）31.750（1 1 4）31.750（1 1 4）31.750（1 1 4）

38.100（1 1 2）

38.100（1 1 2）38.100（1 1 2）38.100（1 1 2）

38.100（1 1 2）

15.88( .625)19.05( .750)25.40(1.000)28.58(1.125)31.75(1.250)

31.750 31.734 38.114 38.089

27 00031 80040 90045 30049 400

59 00072 500

100 000114 000128 000

4 5004 5004 5004 5004 500

IRB 1610IRB 1612IRB 1616

IRB 1620

31.750（1 1 4）31.750（1 1 4）31.750（1 1 4）31.750（1 1 4）

41.275（1 5 8）

41.275（1 5 8）

41.275（1 5 8）

41.275（1 5 8）

12.70( .500)19.05( .750)25.40(1.000)31.75(1.250)

3.43.43.43.4

31.750 31.734 41.289 41.264

13 70024 10033 20040 000

17 60036 40055 00069 600

12 00012 00012 00012 000

IRB 168IRB 1612IRB 1616IRB 1620


Max. Min. Max. Min.

Shaft dia.

h6

Housing bore dia.

J7


D

C

Fw D

C

FwD

C

Fw

t1


B



38.548.558.5697997.5

47.5 57.5 67.5 78 88106

38 51.5 91105131

YB 246YB 248YB 2414YB 2416YB 2420


Shaft dia.

mm(inch)




g

Mass (Ref. )

g

Mass (Ref. )

g

Mass (Ref. )

g

Mass (Ref. )

g


Inch Series

BA 228 ZBA 2212 ZBA 2216 ZBA 2220 Z

BAM 228BAM 2212BAM 2216BAM 2220

YB 228YB 2212YB 2220

23.535.547.559

34.925（1 38）

29 41 53 64

30.5 46 77.5

BHA 228 ZBHA 2210 ZBHA 2212 ZBHA 2216 ZBHA 2220 Z

BHAM 228BHAM 2210BHAM 2212BHAM 2216BHAM 2220

3744537187

4350597798.5

38.100（1 12）

Shaft dia. 34.925− 38.100mm

38.100（1 1 2）38.100（1 1 2）38.100（1 1 2）38.100（1 1 2）38.100（1 1 2）38.100（1 1 2）

47.625（1 7 8）47.625（1 7 8）47.625（1 7 8）47.625（1 7 8）47.625（1 7 8）47.625（1 7 8）

12.70( .500)15.88( .625)19.05( .750)22.22( .875)25.40(1.000)31.75(1.250)

2.82.82.82.82.82.8

38.100 38.084 47.639 47.614

12 90017 80022 50026 70031 10039 000

17 90027 10036 60045 60055 40074 200

9 0009 0009 0009 0009 0009 000

IRB 2010

IRB 2014IRB 2016IRB 2020

38.100（1 1 2）38.100（1 1 2）38.100（1 1 2）38.100（1 1 2）38.100（1 1 2）

47.625（1 7 8）47.625（1 7 8）47.625（1 7 8）47.625（1 7 8）47.625（1 7 8）

9.52( .375)12.70( .500)22.22( .875)25.40(1.000)31.75(1.250)

38.100 38.084 47.639 47.614

21 00028 70048 90055 10066 800

34 10050 900

101 000118 000151 000

4 0004 0004 0004 0004 000

IRB 2014IRB 2016IRB 2020


C

N


C0

N


min-1


Fw D C t1Max.

Assembledinner ring

34.925（1 3 8）34.925（1 3 8）34.925（1 3 8）34.925（1 3 8）34.925（1 3 8）34.925（1 3 8）34.925（1 3 8）

41.275（1 5 8）41.275（1 5 8）41.275（1 5 8）41.275（1 5 8）41.275（1 5 8）41.275（1 5 8）41.275（1 5 8）

12.70( .500)19.05( .750)25.40(1.000)31.75(1.250)12.70( .500)19.05( .750)31.75(1.250)

2.82.82.82.8

34.925 34.909 41.289 41.264

9 77016 90023 10028 90023 00033 40052 000

16 60033 50050 20067 10049 50079 800

141 000

10 00010 00010 00010 0004 5004 5004 500


34.925（1 3 8）34.925（1 3 8）34.925（1 3 8）34.925（1 3 8）34.925（1 3 8）

44.450（1 3 4）44.450（1 3 4）44.450（1 3 4）44.450（1 3 4）44.450（1 3 4）

12.70( .500)15.88( .625)19.05( .750)25.40(1.000)31.75(1.250)

3.43.43.43.43.4

34.925 34.909 44.464 44.439

14 10019 70024 80034 10041 200

18 80028 80038 80058 40074 200

10 00010 00010 00010 00010 000

IRB 188

IRB 1812IRB 1816IRB 1820


Max. Min. Max. Min.

Shaft dia.

h6

Housing bore dia.

J7


D

C

Fw D

C

FwD

C

Fw

t1


B

50104128155180

66119144170196

130

BA 328 ZBA 3216 ZBA 3220 ZBA 3224 ZBAW3228Z

BAM 328BAM 3216BAM 3220BAM 3224BAMW3228

YB 3216

67.5 91112136

79.5103125148

195

210

119

BA 2812 ZBA 2816 ZBA 2820 ZBA 2824 Z

BAM 2812BAM 2816BAM 2820BAM 2824

YB 2816

BHA 2824 Z BHAM 2824


Shaft dia.

mm(inch)




g

Mass (Ref. )

g

Mass (Ref. )

g

Mass (Ref. )

g

Mass (Ref. )

g


Inch Series

BA 268 ZBA 2610 ZBA 2616 ZBA 2620 Z

BAM 268BAM 2610BAM 2616BAM 2620

YB 2610

41 52 85105

41.275（1 58）

51.5 62.5 95.5115

69

44.450（1 34）

BA 308 ZBA 3010 ZBA 3012 ZBA 3016 Z

BAM 308BAM 3010BAM 3012BAM 3016

YB 3012

47.5 60 72.5 97.5

47.625（1 78）

61 74 86.5112

95

50.800（2）



52.388（2 116）

104139205

122157225

Shaft dia. 41.275− 52.388mm


C

N


C0

N


min-1

BA … Z BHA … Z


Fw D C

BAM BHAM YB

Assembledinner ring

44.450（1 3 4）44.450（1 3 4）44.450（1 3 4）44.450（1 3 4）44.450（1 3 4）

44.450（1 3 4）

50.800（2　）50.800（2　）50.800（2　）50.800（2　）50.800（2　）50.800（2　）

41.275（1 5 8）41.275（1 5 8）41.275（1 5 8）41.275（1 5 8）41.275（1 5 8）

53.975（2 1 8）53.975（2 1 8）53.975（2 1 8）53.975（2 1 8）53.975（2 1 8）

57.150（2 1 4）

60.325（2 3 8）60.325（2 3 8）60.325（2 3 8）60.325（2 3 8）60.325（2 3 8）60.325（2 3 8）

50.800（2　）50.800（2　）50.800（2　）50.800（2　）50.800（2　）

19.05( .750)25.40(1.000)31.75(1.250)38.10(1.500)25.40(1.000)

38.10(1.500)

12.70( .500)25.40(1.000)31.75(1.250)38.10(1.500)44.45(1.750)25.40(1.000)

12.70( .500)15.88( .625)25.40(1.000)31.75(1.250)15.88( .625)

2.82.82.82.8

3.4

2.82.82.82.82.8

2.82.82.82.8

44.450

44.450

50.800

41.275

44.434

44.434

50.781

41.259

53.993

57.168

60.343

50.818

53.963

57.138

60.313

50.788

25 20034 80043 60052 00059 500

72 200

15 40037 10046 60055 50057 90064 100

13 70018 90033 00041 40037 000

44 50067 40090 200

113 000136 000

135 000

24 70076 500

102 000128 000136 000156 000

19 80030 00061 40082 10071 700

7 5007 5007 5007 5003 500

7 500

6 0006 0006 0006 0006 0002 500

8 0008 0008 0008 0003 500

IRB 2412IRB 2416

IRB 2424IRB 2416

IRB 2424

IRB 2616IRB 2720

IRB 2628IRB 2616

IRB 2210

IRB 2220IRB 2210

47.625（1 7 8）47.625（1 7 8）47.625（1 7 8）47.625（1 7 8）47.625（1 7 8）

57.150（2 1 4）57.150（2 1 4）57.150（2 1 4）57.150（2 1 4）57.150（2 1 4）

12.70( .500)15.88( .625)19.05( .750)25.40(1.000)19.05( .750)

2.82.82.82.8

47.625 47.609 57.168 57.138

14 70020 30025 70035 40047 800

22 80034 50046 70070 600

105 000

7 0007 0007 0007 0003 000

IRB 248-1IRB 2410-1

52.388（2 116）52.388（2 116）52.388（2 116）

64.294（21732）64.294（21732）64.294（21732）

19.05( .750)25.40(1.000)38.10(1.500)

3.43.43.4

52.388 52.369 64.312 64.28236 40050 60073 900

62 10094 700

154 000

6 0006 0006 000


Max. Min. Max. Min.

Shaft dia.

h6

Housing bore dia.

J7t1Max.

D

C

Fw D

C

FwD

C

Fw

t1


B

85.5115143172

85.5103139173

105135163192

115133169205

BA 3612 ZBA 3616 ZBA 3620 ZBA 3624 Z

BA 4410 ZBA 4412 ZBA 4416 ZBA 4420 Z

BAM 4410BAM 4412BAM 4416BAM 4420


Shaft dia.

mm(inch)




g

Mass (Ref. )

g

Mass (Ref. )

g

Mass (Ref. )

g

Mass (Ref. )

g


Inch Series

BA 348 ZBA 3416 ZBA 3424 Z

BAM 348BAM 3416BAM 3424

53109162

70.5127180

BAM 3612BAM 3616BAM 3620BAM 3624

BA 4216 Z BAM 4216 13366.675

（2 58） 161

53.975（2 18）

57.150（2 14）

69.850（2 34）

Shaft dia. 53.975− 69.850mm

69.850（2 3 4）69.850（2 3 4）69.850（2 3 4）69.850（2 3 4）

79.375（3 1 8）79.375（3 1 8）79.375（3 1 8）79.375（3 1 8）

15.88( .625)19.05( .750)25.40(1.000)31.75(1.250)

2.82.82.82.8

69.850 69.831 79.393 79.363

25 00031 50043 50054 600

50 80068 700

104 000139 000

3 5003 5003 5003 500

IRB 4016IRB 4020

57.150（2 1 4）57.150（2 1 4）57.150（2 1 4）57.150（2 1 4）

66.675（2 5 8）66.675（2 5 8）66.675（2 5 8）66.675（2 5 8）

19.05( .750)25.40(1.000)31.75(1.250)38.10(1.500)

2.82.82.82.8

57.150 57.131 66.693 66.663

28 50039 30049 40058 800

56 70085 700

115 000144 000

5 0005 0005 0005 000


C

N


C0

N


min-1

BA … Z


Fw D C t1Max.

BAM

Assembledinner ring

53.975（2 1 8）53.975（2 1 8）53.975（2 1 8）

63.500（2 1 2）63.500（2 1 2）63.500（2 1 2）

12.70( .500)25.40(1.000)38.10(1.500)

2.82.82.8

53.975 53.956 63.518 63.48816 10038 70057 900

26 60082 500

138 000

5 5005 5005 500

IRB 3016IRB 3024

66.675（2 5 8） 76.200（3 　）

25.40(1.000) 2.8 66.675 66.656 76.218 76.188 42 000 97 900 4 000 IRB 3616


Max. Min. Max. Min.

Shaft dia.

h6

Housing bore dia.

J7

D

C

Fw D

C

Fw

t1



Note(1) 　Allowable rotational speed applies to grease lubrication.Remark　The type with seals is provided with prepacked grease.

Shaft dia.

mm


12

14

15

16

18

20

22

25

28

30

35

40

45

50

TLA 1216 UU

TLA 1416 UU

TLA 1516 UU

TLA 1616 UU

TLA 1816 UU

TLA 2016 UUTLA 2020 UU



TLA 2820 UU




TLA 4520 UU

TLA 5026 UU

11.7

13.3

14

14.8

16.3

17.8 22.5

19.4 25

26 33

36.5

30.5 39

35 45

39.5 50.5

56

89


Max. Min. Max. Min. N7

Housing bore dia.

12

14

15

18

16

2020

2222

2525

28

3030

3535

45

50

4040

18

20

21

24

22

2626

2828

3232

35

3737

4242

52

58

4747

16

16

16

16

16

1620

1620

1620

20

1620

1620

20

26

1620

12.000

14.000

15.000

18.000

16.000

20.000

22.000

25.000

28.000

30.000

35.000

45.000

50.000

40.000

11.989

13.989

14.989

17.989

15.989

19.987

21.987

24.987

27.987

29.987

34.984

44.984

49.984

39.984

17.995

19.993

20.993

23.993

21.993

25.993

27.993

31.992

34.992

36.992

41.992

51.991

57.991

46.992

17.977

19.972

20.972

23.972

21.972

25.972

27.972

31.967

34.967

36.967

41.967

51.961

57.961

46.967

Boundary dimensions　mm

D CFw

Mass (Ref. )

gh6

Shaft dia.


With seals

6 420

7 080

7 380

7 670

8 230

8 74011 100

9 23011 700

9 44012 800

13 800

10 40014 100

11 60015 700

12 40016 700

17 800

28 800

7 490

8 840

9 520

10 200

11 500

12 90017 500

14 30019 300

13 90020 500

23 500

16 60024 500

20 00029 600

22 80033 700

37 800

64 100

14 000

12 000

11 000

11 000

9 000

9 0009 000

8 0008 000

7 0007 000

6 000

5 5005 500

5 0005 000

4 5004 500

4 000

3 500


C

N


C0

N


min-1

TLA … UU

D

C

Fw

C

C1 C2

High carbon steel cage type

Synthetic resin cage type

IKO Needle Roller Cages for General Usage are bearings which display excellent rotational perfor-mance. Needle rollers with extremely small dimen-sional variations in diameter are incorporated and retained in their specially shaped cages with high rigidity and accuracy, which precisely guide the nee-dle rollers. When combined with shafts and housing bores that are heat treated and accurately ground as raceway surfaces, Needle Roller Cages for General Usage are particularly useful in small spaces. In addition, since they are lightweight and have high rigidity as well as a large lubricant holding capacity, they can withstand severe operating conditions such as high speed rotation and shock loads, and they are used in a wide range of applications.

Structures of Needle Roller Cages for General Usage

Cage

Needle roller

Cage

Needle roller


Needle roller

Cage


Structure and Features

C

1N=0.102kgf=0.2248lbs.1mm=0.03937inchC3 C4

KT 50 58 25 N C3

Model codeSupplemental

code

Supplemental code

Dimensions

KT 15 10 C3

Type of bearing

20

Tolerance of mean value of roller dia. (Refer to Table 2.)

Cage width（10mm）

Roller set outside diameter（20mm）



Type of bearing

Tolerance of mean value of roller dia. (Refer to Table 2.)

Cage width（25mm）




Example 1

Example 2

TypesNeedle Roller Cages for General Usage are available in the types shown in Table 1.For applications such as crank shafts where these bearings are difficult to install, it is also possible to make split type bearings.If such bearings are required, please contact IKO.For Needle Roller Cages for Engine Connecting Rods (KT…EG and KTV…EG), see page C17.

The identification number of Needle Roller Cages for General Usage consists of a model code, dimensions and any supplemental codes. The arrangement examples are shown below.


AccuracyThe diameter tolerances of needle rollers of Needle Roller Cages for General Usage are classified by classification symbols shown in Table 2. If a classifi-cation symbol is not indicated in an identification num-ber, the classification symbol "C3" is applied.When two or more bearings are used in tandem arrangement on the same shaft, it is necessary to select bearings of the same classification symbol to obtain an even load distribution.

The tolerance of the cage width Bc is -0.20〜 -0.55 mm.

C 3

B 2

B 4

B 6

B 8

B10

0〜− 30〜− 2

− 2〜− 4− 4〜− 6− 6〜− 8− 8〜− 10

Classification symbolTolerance of mean value of needle roller

diameter

Table 2 Diameter tolerances of needle rollers unit: μ m

Table 1 Model of bearing

ItemModel of bearing

Single row needle roller

Double row needle roller


KT KTW


KT…N −

Radial clearances of Needle Roller Cages for General Usage are determined by the dimensional accuracy of the raceways and needle rollers. Table 3 shows the recommended fits for the operating conditions.

Fit

Specifications of shaft and housing


For the raceways, a surface hardness of 58〜 64HRC and a surface roughness 0.2μmRa or less are desir-able. However, when the operating conditions are not severe, a surface roughness 0.8μmRa or less can be used.When the surface hardness is low, it is necessary to correct the load rating by the hardness factor speci-fied on page A20.

MountingThe dimensions related to mounting of Needle Roller Cages for General Usage are shown in Figs. 1 and 2.When mounting Needle Roller Cages for General Usage, they are axially positioned by using, for exam-ple, Cir-clips for shaft and housing bore (WR and AR on page L17) as shown in Figs. 3, 4 and 5.For high rotational speed applications, a heat treated and ground spacer is positioned between the cage and the cir-clip as shown in Fig. 5 so that the cage does not make direct contact with the cir-clip. In this case, the cir-clip is normally mounted on the non-rotating side.Fig. 3 shows a mounting example in the case of outer ring rotation, and Figs. 4 and 5 show examples in the case of inner ring rotation.

When high operating accuracy is required. When shock loads and oscillating motions are applied.

For general use

When the temperature is high, or mounting errors are large.

j5 h5

h5

g6

g5

f6

Shaft

Operating conditions

Tolerance class of shaft

Fw≦ 68mm Fw＞ 68mm

Table 3 Recommended fits of shaft to the housing bore diameter G6

Remark　 When setting the required radial clearance according to the operating conditions, the clearance can easily be obtained by selecting and matching the tolerances of needle rollers, shaft and housing bore. When variation of the clearance does not create any problems, h6 and G7 are used for shaft and housing bore, respectively.

Fig.1

Fig.2

Fig.3

Fig.4

Fig.5

The operating temperature range for high carbon steel cage types is -20 to 120°C. The maximum allow-able temperature for synthetic resin cage types is +110 C, and +100 C when they are continuously operated.

Dw

Dw

Bc H11

2| 3

Dw

Dw

Bc H11

2| 3

C


NEEDLE ROLLER CAGES FOR GENERAL USAGE


Shaftdia.

mm

Mass (Ref.)

g


C

N


C0

N


Fw Ew Bc

Note(1) 　Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 50% of this value is allowable.Remark　 For synthetic resin cage types, "N" is added at the end of the identification number. For sizes not listed in the dimension tables, please

contact IKO.


min-1


3 KT 367N 0.39 3 6 7 1 480 990 140 000

4 KT 477N 0.47 4 7 7 1 800 1 300 100 000

5 KT 587NKT 588N

0.53 0.66

55

88

78

2 0702 420

1 6001 950

85 00085 000

6KT 697NKT 698NKT 6910KT 61013

0.63 0.75 1.45 2.7

6666

999

10

78

1013

2 3102 7003 0104 410

1 9002 3202 6603 720

75 00075 00075 00075 000

7 KT 7108NKT 71010

0.86 1.69

77

1010

810

2 9603 340

2 6903 130

65 00065 000

8

KT 8118NKT 81110KT 81110NKT 81113KT 8128KT 81211

0.96 1.9 1.2 2.5 2.1 3

888888

111111121212

81010138

11

3 1903 6303 6304 5003 6304 630

3 0603 6003 6004 7503 0404 170

60 00060 00060 00060 00060 00060 000

9

KT 91210KT 91213

2.1 2.8

99

1212

1013

3 9004 840

4 0705 370

55 00055 000

10

KT 10138KT 101310KT 101313KT 101410KT 101412KT 101413KT 101415

1.9 2.3 3 3.2 3.8 4.2 4.8

10101010101010

13131314141414

8101310121315

3 3704 1605 1604 9005 9406 1007 080

3 4704 5506 0004 6806 0006 2007 520

50 00050 00050 00050 00050 00050 00050 000

11 KT 111410 2.5 11 14 10 4 400 5 020 45 000

High carbon steel cage type Synthetic resin cage typeKT ( … N)

Shaftdia.

mm

Mass (Ref.)

g


C

N


C0

N



Fw Ew Bc


min-1

12

KT 12158KT 121510KT 121512KT 121513KT 121514KT 121610KT 121613KT 121618KT 121710KT 121812KT 121820

2.2 2.7 3.2 3.6 3.8 4 5.2 7 5.1 7.8 13.2

1212121212121212121212

1515151515161616171818

810121314101318101220

3 7504 6205 5905 7306 2005 6507 0209 7906 1709 030

13 700

4 2005 4907 0207 2508 0105 8907 800

11 9005 7408 460

14 400

40 00040 00040 00040 00040 00040 00040 00040 00040 00040 00040 000

13KT 131710KT 131815KT 131816

4.3 8.2 8.7

131313

171818

101516

5 9909 660

10 300

6 50010 40011 400

40 00040 00040 000

14

KT 14188KT 141810KT 141811KT 141813KT 141816KT 141910KT 141916KT 141918KT 142012KT 142017

3.7 4.6 5.2 6 7.3 5.9 9.4 10.5 8.712.4

14141414141414141414

18181818181919192020

8101113161016181217

5 1106 3206 5207 8609 7507 130

11 10012 4009 790

13 300

5 4107 1107 4109 410

12 4007 180

12 60014 7009 680

14 400

35 00035 00035 00035 00035 00035 00035 00035 00035 00035 000

Ew Fw

Bc

C



Shaftdia.

mm

Mass (Ref.)

g


C

N


C0

N



Fw Ew Bc

Note(1) 　Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 50% of this value is allowable.


min-1

15

KT 15199KT 151910KT 151911KT 151913KT 151917KT 151918KT 152010KT 152115

4.4 4.9 5.5 6.4 8.2 8.7 6.3 11.9

1515151515151515

1919191919192021

910111317181015

6 1206 6306 8508 250

10 90011 5007 580

12 600

6 9507 7208 040

10 20014 60015 6007 920

13 500

35 00035 00035 00035 00035 00035 00035 00035 000

16

KT 162010KT 162013KT 162016KT 162017KT 162118KT 162120KT 162125KT 162212KT 162214KT 162217KT 162220KT 162420

5.2 6.8 8.3 8.7 12 13.6 16.6 9.7 11.5 13.8 16.5 23.5

161616161616161616161616

202020202121212222222224

101316171820251214172020

6 9308 620

10 70011 40014 00014 70018 30010 50011 60014 20015 90018 500

8 33011 00014 60015 70017 70018 90025 10010 90012 50016 10018 60019 000

30 00030 00030 00030 00030 00030 00030 00030 00030 00030 00030 00030 000

17


5.5 7.2 8.2 9.3 14 9.6 13.1 18.6

1717171717171717

2121212122232324

1013151720111518

7 2208 980

10 40011 80015 50010 10013 30016 500

8 95011 80014 40016 90020 50010 50015 10018 000

30 00030 00030 00030 00030 00030 00030 00030 000


High carbon steel cage typeKT

Shaftdia.

mm

Mass (Ref.)

g


C

N


C0

N



Fw Ew Bc


min-1

18

KT 18228KT 182210KT 182213KT 182216KT 182412KT 182416KT 182417KT 182420KT 182517KT 182519KT 182522KT 182614KT 182620

4.7 5.8 7.6 9.2 11 14.8 15.7 18.7 18.8 21 24.5 18.1 26

18181818181818181818181818

22222222242424242525252626

8101316121617201719221420

6 0607 5009 330

11 60011 80015 10016 00017 90016 70018 70020 60014 60020 000

7 2709 560

12 70016 70013 10017 90019 40022 40018 60021 40024 20014 40021 600

30 00030 00030 00030 00030 00030 00030 00030 00030 00030 00030 00030 00030 000

Ew Fw

Bc

C



Shaftdia.

mm

Mass (Ref.)

g


C

N


C0

N



Fw Ew Bc



min-1

20

KT 202410KT 202413KT 202417KTW 202422KT 202525KTW 202531.6KTW 202540KT 202611KT 202612KT 202614KT 202617KT 202620KT 202624KT 202627KT 202814KT 202820KT 203225

6.3 8.3 10.6 14.6 19.7 26.5 32.5 11.1 12 14.2 17 20.5 24 26.5 20 29 49.5

2020202020202020202020202020202020

2424242425252526262626262626282832

10 13 17 22 25 31.6 40 11 12 14 17 20 24 27 14 20 25

7 7109 590

12 60013 70019 90021 70027 50011 20012 40013 70016 80018 70022 50026 00015 70021 50030 800

10 20013 50019 30021 30029 80033 20044 90012 50014 30016 40021 20024 40030 90037 30016 10024 20030 500

25 00025 00025 00025 00025 00025 00025 00025 00025 00025 00025 00025 00025 00025 00025 00025 00025 000

21 KT 212610KT 212611

8.5 9.6

2121

2626

10 11

9 0909 390

11 00011 500

25 00025 000



Shaftdia.

mm

Mass (Ref.)

g


C

N


C0

N



Fw Ew Bc


min-1

22

KT 222610KT 222613KT 222617KTW 222625KT 222720KT 222726KT 222817KT 222912KT 222916KT 222917KT 222918KT 222920KT 223015KT 223230KT 223232

6.9 9.1 11.6 17.7 17.9 22.5 18.4 16.1 21 22.5 23.5 26.5 23.5 52.5 56

222222222222222222222222222222

262626262727282929292929303232

101317252026171216171820153032

8 22010 20013 50017 10017 40022 50017 50012 90017 60018 70019 80020 90017 90036 40038 800

11 50015 20021 60029 40025 70035 80023 00014 00020 90022 60024 40026 10019 70042 70046 300

25 00025 00025 00025 00025 00025 00025 00025 00025 00025 00025 00025 00025 00025 00025 000

23KT 232824KT 232913KT 233015KT 233016

22 15.1 21 22

23232323

28293030

24131516

21 60013 80017 30018 600

34 50017 20020 80022 600

20 00020 00020 00020 000

24

KT 242813KT 242816KTW 242834KT 242913KT 243020

9.9 12 27 12.8 23.5

2424242424

2828282930

1316341320

10 80013 40021 60012 70020 300

16 80022 20040 70017 60028 500

20 00020 00020 00020 00020 000

KT KTW

Ew Fw

Bc

Ew Fw

Bc

C



Shaftdia.

mm

Mass (Ref.)

g


C

N


C0

N



Fw Ew Bc


contact IKO.


min-1

25

KT 252910KT 252913KT 253013KT 253016KT 253017KT 253020KT 253113KT 253116KT 253117KT 253120KT 253216KT 253224KT 253515KT 253525KT 253530

7.9 10.3 13.3 16.2 17.1 20 16.2 19.6 20.5 25 23.5 35 33 48 58

252525252525252525252525252525

292930303030313131313232353535

101313161720131617201624152530

8 94011 10013 10016 30017 30018 60014 30017 80019 00021 20019 40027 70022 60032 50039 100

13 30017 60018 60024 60026 60029 10018 40024 40026 50030 50024 50038 70023 80037 90048 000

20 00020 00020 00020 00020 00020 00020 00020 00020 00020 00020 00020 00020 00020 00020 000

26 KT 263013KT 263832

10.7 79.5

2626

3038

1332

11 40047 200

18 40055 300

19 00019 000

28


14.8 18.9 29 23 26 44.5 38.5 110

2828282828282828

3333333435353641

1317271716282038

13 80018 30026 30020 30020 10033 20026 50058 700

20 70029 50047 30029 90026 50050 60034 70071 100

18 00018 00018 00018 00018 00018 00018 00018 000


High carbon steel cage type Synthetic resin cage type

KT 293825N29 40.7 29 38 25 35 800 47 800 17 500

Shaftdia.

mm

Mass (Ref.)

g


C

N


C0

N



Fw Ew Bc


min-1

30

KT 303513KT 303516KT 303517KT 303524KT 303527KT 303613KT 303620KT 303630KT 303715KT 303716KT 303720KT 303723KT 303818KT 303824KT 304232KTW 304237

15.6 18.9 20 28.5 31.5 19.1 29.5 41.5 26 27.5 35 39.5 36.5 48.5 93 117

30303030303030303030303030303030

35353535353636363737373738384242

13161724271320301516202318243237

14 10017 50018 70024 90027 90015 80023 30033 20019 50020 80024 70028 50026 20033 20054 00055 900

21 70028 70031 10045 10052 10022 10036 50057 50026 00028 40035 40042 50034 80047 20068 10071 300

17 00017 00017 00017 00017 00017 00017 00017 00017 00017 00017 00017 00017 00017 00017 00017 000

32

KT 323713KT 323717KT 323723KT 323813KT 323820KT 323916KT 323920KT 324519KT 324525KT 324532KT 324550

16.7 21.5 28.5 20.5 31.5 29 37 63.5 84.5 109 162

3232323232323232323232

3737373838393945454545

1317231320162019253250

14 90019 60024 40016 80024 80021 60025 60033 70045 60058 50081 500

23 70033 90044 80024 40040 30030 20037 70035 90053 00073 000

111 000

16 00016 00016 00016 00016 00016 00016 00016 00016 00016 00016 000

KT ( … N) KTW

Ew Fw

Bc

Ew Fw

Bc

C


Shaftdia.

mm

Mass (Ref.)

g


C

N


C0

N



Fw Ew Bc


contact IKO.


min-1

35

KT 354013KT 354017KT 354026KT 354113KT 354216KT 354218KT 354220KT 354230KT 354525

18.1 23 34.5 22.5 32 35.5 40.5 59 68.5

353535353535353535

404040414242424245

131726131618203025

15 50020 50028 70017 70023 10026 00027 40040 60042 100

25 80036 90056 80026 80033 90039 50042 30070 30057 900

14 00014 00014 00014 00014 00014 00014 00014 00014 000

36 KT 364216 27.5 36 42 16 21 900 35 700 14 000

38KT 384417KT 384620KT 384632

30.5 50 80

383838

444646

172032

23 80030 50045 400

40 40045 40075 700

13 00013 00013 000

40

KT 404513KT 404517KT 404527KT 404817KT 404820KT 404825KT 404834KT 405015KT 405017KT 405020KTW 405238KT 405432KT 405450KT 405463

20.5 26.5 41 44 52.5 64.5 87.5 48.5 56.5 61 158 144 215 270

4040404040404040404040404040

4545454848484850505052545454

1317271720253415172038325063

16 80022 20032 40028 10031 40039 30051 10028 20030 20035 70065 00066 80093 600

115 000

29 80042 70069 20041 60048 00064 00089 60035 90039 20048 60093 00087 200

134 000175 000

12 00012 00012 00012 00012 00012 00012 00012 00012 00012 00012 00012 00012 00012 000



High carbon steel cage type Synthetic resin cage type

Shaftdia.

mm

Mass (Ref.)

g


C

N


C0

N



Fw Ew Bc


min-1

41 KT 414835 78.5 41 48 35 47 800 90 800 12 000

42

KT 424717KT 424815KT 424816KT 425020KT 425030

27.5 30 32 55 80.5

4242424242

4748485050

1715162030

22 50022 40024 00032 40048 200

44 20038 60042 10050 60084 400

12 00012 00012 00012 00012 000

45

KT 455017KT 455027KT 455320KT 455325KT 455330KT 455335KT 455527

29.5 46 58 71.5 86 101 90.5

45454545454545

50505353535355

17272025303527

23 30034 80033 20041 50047 80053 90050 300

47 10079 00053 30071 10085 30099 50078 200

11 00011 00011 00011 00011 00011 00011 000

48 KT 485320KT 485420

37 46

4848

5354

2020

26 80030 600

57 60060 400

10 00010 000

50

KT 505520KT 505527KT 505820KT 505825

KT 505825NKT 505830KT 505835

38.5 50.5 65 80 66.3 96.5 113

50505050505050

55555858585858

20272025253035

27 10035 60035 90044 90051 40051 70058 300

59 30084 10061 10081 50097 80097 800

114 000

10 00010 00010 00010 00010 00010 00010 000

52 KT 525817KT 526024

41 80

5252

5860

1724

28 30044 000

56 00080 800

9 500 9 500

KT ( … N) KTW

Ew Fw

Bc

Ew Fw

Bc

C


Shaftdia.

mm

Mass (Ref.)

g


C

N


C0

N



Fw Ew Bc



min-1

55

KT 556020KT 556027KT 556120KT 556315KT 556320KT 556325

42.5 55.5 52 52.5 71 87

555555555555

606061636363

202720152025

28 60037 60032 60029 40037 40046 800

66 00093 90068 50048 70066 40088 600

9 0009 0009 0009 0009 0009 000

58 KT 586320KT 586420

44.5 54.5

5858

6364

2020

29 30033 600

69 40072 500

8 5008 500

60

KT 606520KT 606820KT 606825KT 606827KT 607236

45.5 76.5 94101205

6060606060

6568686872

2020252736

29 70038 90048 60052 40086 700

71 10071 70095 600

105 000152 000

8 5008 5008 5008 5008 500

63 KT 637120 79.5 63 71 20 39 500 74 400 8 000

65 KT 657320KT 657330

83.5124

6565

7373

2030

41 20059 300

79 600127 000

7 5007 500

68 KT 687620 86.5 68 76 20 41 800 82 200 7 500

70 KT 707820KT 707830

89 132

7070

7878

2030

42 50061 200

84 900136 000

7 0007 000

72 KT 728020 91.5 72 80 20 43 200 87 500 7 000

75

KT 758320KT 758325KT 758330KT 758335

94.5 116 141 164

75757575

83838383

20253035

43 80054 80063 10071 200

90 200120 000144 000168 000

6 5006 5006 5006 500




Shaftdia.

mm

Mass (Ref.)

g


C

N


C0

N



Fw Ew Bc


min-1

80KT 808822KT 808825KT 808830

110 123 149

808080

888888

222530

49 70056 40065 000

108 000127 000153 000

6 0006 0006 000

85KT 859112KT 859325KT 859330

44.5 130 157

858585

919393

122530

25 20057 80066 600

56 700134 000161 000

6 0006 0006 000

90 KT 909825KT 909830

138 167

9090

9898

2530

60 40069 600

145 000174 000

5 5005 500

95 KT 9510330 175 95 103 30 70 900 182 000 5 500

100 KT 10010830 184 100 108 30 72 500 191 000 4 500

KT

Ew Fw

Bc

C

C17 C18

Needle Roller Cages for Big End

Needle Roller Cages for Small End

Structure and FeaturesIKO Needle Roller Cages for Engine Connecting Rods are bearings for use in engine connecting rods. These bearings have superior performance proven in high performance engines of racing motor cycles, and are widely used in small motor vehicles, motor cycles, outboard marines, snow mobiles, high-speed com-pressors, etc. and also in general-purpose engines.Bearings for engine connecting rods are used under extremely severe and complex operating conditions such as heavy shock loads, high speeds, high tem-peratures and stringent lubrication.Needle Roller Cages for Engine Connecting Rods are lightweight, and have high load ratings and high rigidi-ty as well as superior wear resistance to withstand these severe conditions.

Structures of Needle Roller Cages for Engine Connecting Rods

Cage

Needle roller

Cage

Needle roller

TypesIn Needle Roller Cages for Engine Connecting Rods, the types shown in Table 1 are available.

Table 1 Types

Type For big end For small end

Model code KT…EG KTV…EG

C


The identification number of Needle Roller Cages for Engine Connecting Rods consists of a model code, dimensions and any supplemental codes as shown below.


The diameter tolerances of needle rollers of Needle Roller Cages for Engine Connecting Rods are classi-fied as shown in Table 2. When the classification symbol is not indicated in the identification number, the classification symbol "B2" is applied.

The tolerance of the cage width Bc is − 0.2〜− 0.4 mm. But cages with marks in the Bc column in the dimension tables are manufactured with the following width tolerances.

　　：0〜− 0.2 mm　　　：− 0.1〜− 0.3 mm

Accuracy

Needle Roller Cages for Big End KT…EG

These roller cages are subjected to acceleration and deceleration during their rotating and epicyclic motion due to crank shaft rotation. To withstand such condi-tions, they are made of a special alloy and are light-weight with high rigidity.They are guided on their outer periphery surface with superior lubricating properties. For the purpose of using them under severe condi-tions such as high rotational speed and stringent lubri-cation, bearings plated with non-ferrous metals are also available on request.High-load capacity and high-rigidity cages to be used for racing motor cycles (See the photo bellow.), split needle cages for solid (one-piece) type crank-shafts and other special specification cages of various types are also available. Please consult IKO when required.

Needle Roller Cages for Small End KTV…EG

These roller cages oscillates at high speeds within a limited loading zone under heavy shock loads. Thus, these cages are designed to be lightweight and have high rigidity with a well-balanced structure. In these cages, a number of needle rollers having a small diameter are incorporated to reduce the rolling con-tact stress in the loading zone.Needle Roller Cages for Small End are classified into two types, the outer surface guide type and the inner surface guide type. This classification is shown in the table of dimensions.In the outer surface guide type, the cage is guided by the sliding contact between the inner surface of the connecting rod and the outer surface of the cage.In the inner surface guide type, the cage is guided by the sliding contact between the outer surface of the pin and the inner surface of the cage.


codeDimensions

KT 22 16 EG B2

Type of bearing

28

Tolerance of mean value of roller dia. (See Table 2.)




Width of cage（16mm）

High-load capacity and high-rigidity cage KTZ … EG

ClearanceRadial internal clearances are selected according to the type of engine and the operating conditions (rota-tional speed, load, lubricating conditions, etc.). If a bearing is used with an inadequate clearance, bearing troubles such as seizure, early flaking and noise increase may occur, leading to an engine failure. Therefore, it is necessary to select the clearance carefully according to test results and experience.

Table 2 Tolerances of needle roller diameter

ClassClassification

symbol(1)Tolerance of mean value of

roller dia. (2)

Standard

Semi-standard

B 2B 4

B 6B 8B10

　0〜− 2− 2〜− 4

− 4〜− 6− 6〜− 8− 8〜− 10

Notes(1)　 The classification symbol is indicated at the end of the identification number.

(2)　 Tolerances for circularity are based on JIS B 1506

(Rolling bearings - Rollers).

unit: μ m

FitTo obtain the recommended clearance shown in Table 3, it is general practice to match a connecting rod, crank pin or piston pin and needle roller cage of suitable tolerances for assembly.

Precautions for Use

Fig.1

When designing a connecting rod, crank pin and pis-ton pin, the following precautions should be taken, because the raceways are subjected to loads under extremely severe conditions.1 Material

It is recommended to use carburizing steel because the raceways are subjected to fluctuating loads with frequent and heavy shock loads. Generally, chromi-um molybdenum steel is used. Nickel chromium molybdenum steel is also used.2 Hardness

The recommended surface hardness of the raceway is 697〜800HV (60〜64HRC). While the effective hardening depth differs depending on the applica-tions, the general value is 0.6〜1.2 mm.3 Surface roughness

To minimize initial wear and to extend life, it is recom-mended that the surface roughness of the crank pin and piston pin be 0.1μmRa or less, and the surface roughness of the connecting rod large end and small end bores be 0.2μmRa or less.4 Accuracy

Circularity and cylindricity of connecting rod, piston pin and crank pin are as shown in Table 4. 5 Parallelism and torsional accuracy of connect-

ing rod boresL±0.02 mm and E±0.02 mm shown in Fig. 1 indi-cate the parallelism and torsional accuracy between the big end and small end bores of the connecting rod, respectively. The tolerance range is 0.04 mm or less per 100 mm in case of a general-purpose engine and 0.02 mm or less for a high-speed engine such as a racing motorcycle engine. When these accuracy conditions are not satisfied, the axial forces on the needle roller cage and connecting rod will increase, directly leading to a failure such as seizure. Careful consideration is required.

Recommended radial internal clearances are shown in Table 3. When operating at high speeds, it is rec-ommended to select the upper limit of the clearance.

Table 3 Recommended radial internal clearance

Shaft dia.mm

Over

−1830

183040

3〜 15

(dp− 6) 〜 dp

(dp− 8) 〜 dp

(dp− 12) 〜 dp

Incl.

Big end Small end

Remark　 dp is obtained using the following equation for roller pitch circle diameter in millimeters, and changing the unit from millimeters to micrometers.

Roller pitch circle dia. =

　　　　 Example　KT 222814 EG for big end　　　　　Recommended clearance is; 17〜 25μm

unit: μ m

Fw ＋Ew

2

Table 4 Accuracy of connecting rod, piston pin and crank pin

Range of dia. mm

Over

−1830

183040

123

234

234

345

Incl.Circularity

MAX.Cylindricity

MAX.Circularity

MAX.Cylindricity

MAX.

Crank pin diameter d1Piston pin diameter d2

Big end bore D1Small end bore D2

Remark　 Refer to Fig.1 for the dimension symbols.

unit: μ m

D1

L L

D2

dd

21

±0.

02±

0.02

100

50 50

E

E

C


Shaftdia.

mm

Mass (Ref.)

g


C

N


C0

N



Fw Ew Bc

8 KT 8128 EG 2.1 8 12 8 3 280 2 660

10 KT 101410 EG 3.2 10 14 10 4 900 4 680

12 KT 121610 EGKT 121710 EG

3.8 5.3

1212

1617

10 10

5 6506 670

5 8906 380

14 KT 14199.7 EGKT 141910 EG

5.7 5.7

1414

1919

9.7 10

6 1206 640

5 8806 530

15 KT 15199 EGKT 152010 EG

4.2 6.1

1515

1920

9 10

5 7907 100

6 4607 260

16 KT 162211.5 EGKT 162212 EG

9.5 9.7

1616

2222

11.5 12

7 50010 60011 800

9 66010 900

18KT 182210 EGKT 182411.6 EGKT 182412 EG

5.7 11 11

181818

222424

10 11.6 12

9 55010 500

9 56011 50013 100

20KT 202612 EGKT 202614 EGKT 202814 EG

12 13.8 20

202020

262628

12 14 14

12 40013 00015 700

14 30015 20016 100

22KT 222814 EGKT 222816 EGKT 222912 EGKT 223215 EG

14.9 17.5 15.2 30

22222222

28282932

14 16 12 15

13 60015 70012 90021 300

16 60019 80014 00021 500

23

24

3032

KT 243015 EGKT 243016 EGKT 243120 EGKT 303818 EGKT 324220 EG

17.9 18.2 28

35.5 54

242424

3032

303031

3842

15 16 20

18 20

14 20016 30020 800

24 90031 900

18 00021 50026 400

32 60039 400

KT … EG

KT 232913 EG 14.9 23 29 13 12 800 15 600

Needle Roller Cages for Big End

NEEDLE ROLLER CAGES FOR ENGINE CONNECTING RODS


Ew Fw

Bc

KTV … EG


Needle Roller Cages for Small End

Shaftdia.

mm

Mass (Ref.)

g


C

N


C0

N



Fw Ew Bc

9 KTV 91211.5 EGKTV 91214 EG

2.8 3.5

9 9

1212

11.5 14

3 9004 440

4 0704 810

10KTV 101316 EGKTV 101410 EGKTV 101411 EGKTV 101412.5 EG

4.5 3.8 4.1 4.8

10 10 10 10

13141414

16 10 11 12.5

4 4004 5205 0605 590

4 8804 2204 8805 540

10.5 KTV 10.51415 EG 5.1 10.5 14 15 5 710 6 270

12KTV 121514.3 EGKTV 121613 EGKTV 121615.5 EG

4.3 5.6 6.8

12 12 12

151616

14.3 13 15.5

5 8407 0207 600

7 3907 8008 600

14KTV 141812 EGKTV 141816.5 EGKTV 141822 EG

6 8.2 10.8

14 14 14

181818

12 16.5 22

6 7809 1809 950

7 76011 50012 600

16 KTV 162019 EGKTV 162022 EG

10.6 12.7

16 16

2020

19 22

10 80011 400

14 60015 700

18 KTV 182223.5 EGKTV 182321 EG

14.9 16.4

18 18

2223

23.5 21

13 00014 400

19 30018 900

Cage guide type

Outer surface guideInner surface guide

Inner surface guideInner surface guideOuter surface guideInner surface guide

Outer surface guide

Outer surface guideOuter surface guideOuter surface guide

Inner surface guideOuter surface guideInner surface guide

Outer surface guideInner surface guide

Inner surface guideInner surface guide

Ew

Bc

Fw

D

D1 D2

Machined Type Caged Needle Roller Bearings

Machined Type Guide Needle Roller Bearings

Structure and FeaturesIKO Machined Type Needle Roller Bearings are bear-ings with a low sectional height and large load ratings. The outer ring has high rigidity and can easily be used even for light alloy housings. These bearings are available in metric series and inch series, both of which have the caged type and the full complement type. It is therefore possible to select a suitable bear-ing for use under various conditions such as heavy loads and high-speed or low-speed rotations. In addi-tion, there are bearings with and without an inner ring. As the type without inner ring uses a shaft as the raceway surface, a compact design is possible.

Structures of Machined Type Needle Roller Bearings

Outer ring

Cage

Needle roller

Outer ring

Cage

Needle roller

Inner ring

Outer ring

Needle roller

Seal

Cage

Outer ring

Mallet-shaped roller

Stop ring

NA49

GTR

RNA49…UU

RNA49

D

D3 D41N=0.102kgf=0.2248lbs.1mm=0.03937inch

TypesMachined Type Needle Roller Bearings are available in various types shown in Table 1.

Caged Needle Roller Bearings

This type of bearing combines a collared outer ring with the IKO's unique lightweight rigid cage and nee-dle rollers. During operation, needle rollers are guid-ed precisely by the cage, and an ideal load distribu-tion is obtained.The metric series consists of the NA48 and NA49 series of ISO Standard, NA69 and TAFI series which are based on the international dimension series, and the heavy duty TRI series which is widely used in Japan. The TAFI series has a sectional height as low as that of the shell type and is used for light loads.The inch series or BRI series is based on the specifi-cations of ANSI Standard of USA.

Caged Needle Roller Bearings without Inner Ring As shown in the section "Design of shaft and housing" on page A44, any desired radial clearance can be selected by assembling this type of bearing with a shaft which is heat-treated and finished by grinding.These bearings are free from the effects on dimen-sional accuracy caused by assembling an inner ring,

so that the rotational accuracy is improved. Also, the shaft rigidity can be improved as the shaft diameter can be increased by an amount corresponding to the inner ring thickness.

Caged Needle Roller Bearings with Inner RingThis type of bearing is used when the shaft cannot be heat-treated and finished by grinding. The outer and inner rings are separable and a small relief clearance is provided on both sides of the inner ring raceway to facilitate bearing mounting. In the TRI and BRI series, the width of the inner ring is larger than that of the outer ring.Due to heat expansion during operation or mounting errors, the inner or outer ring may be shifted axially and the whole length of the rollers may not be in con-tact with the raceway. Therefore, attention should be

paid to the allowable axial shift S as shown in the table of dimensions.

Needle Roller Bearings with SealThese bearings are sealed types of the NA49, NA69 and BRI series bearings, in which a seal is installed on one side (type with one seal) or both sides (type with two seals) of the bearing. The seal is made of special synthetic rubber and effectively prevents dust penetration and grease leakage.

Guide Needle Roller Bearings

These bearings are full complement type bearings and use mallet-shaped rollers which are guided accu-rately by the guide rail located at the center of the outer ring raceway and the guide groove of the mallet-shaped roller. This minimizes skewing (tilting of the roller from its rotating axis), which is normally a weak point of full complement bearings, and improves the rotational accuracy. This type of bearing is especially suitable for heavy loads, shock loads and oscillating motions.Bearings with and without inner rings are available. In bearings with an inner ring, the width of the inner ring is larger than that of the outer ring.

Table 1.1 Type of bearing (Standard type)Type

Series

Inch series

Dimension series 49

Dimension series 69

Dimension series 48

For heavy duty

For light duty

RNA 49

RNA 69

RNA 48

TR

TAF

BR

NA 49

NA 69

NA 48

TRI

TAFI

BRI

GTR

− −

GTRI



Without inner ring With inner ring Without inner ring With inner ring

Met

ric s

erie

s Identification Number


codeClassification

symbolDimensions

NA 49 UU

Type of bearing

05 C2 P6


Example 1 Example 2


Seal symbol (With seals on both sides)

Dimension series

Clearance symbol (C2 clearance)

Accuracy class (Class 6)


BRI 24 16

Type of bearing

37

Bearing bore diameter（24×1／16＝11／2 inches）

Outer ring width（16×1／16＝1 inch）

Bearing outside diameter（37×1／16＝25／16 inches）

Accuracy

Table 2 Accuracy of inner and outer rings of inch series BR and BRII

d or D Nominal bearing bore dia.

or outside dia. mm

∆dmpSingle plane mean

bore diameter deviation

∆DmpSingle plane mean outside diameter

deviation

∆Bs（∆Cs）Deviation of a single inner (or outer) ring

width

KiaRadial runout of

assembled bearing inner ring

KeaRadial runout of

assembled bearing outer ring

− 19.05030.16250.80082.550

120.650

19.050 30.16250.80082.550

120.650 184.150

00000−

− 10 − 13 − 13 − 15− 20

−

− − 13 − 13 − 15 − 20 − 25

− 130 − 130 − 130 − 130 − 130 − 130

− 00000

000000

101315202530

−1520253545

unit: μ m

Over Incl. High Low Low LowHigh High Max. Max.

Remark　d for ∆dmp, ∆Bs, ∆Cs and Kia, and D for ∆Dmp and Kea

Table 1.2 Type of bearing (With seal)Type

Series

Inch series

Dimension series 49

Two side seals

One side seal

Two side seals

One side seal

Two side seals

One side seal

Dimension series 69

RNA 49…UU

RNA 49…U

RNA 69…UU

RNA 69…U

BR　　…UU

−

NA 49…UU

NA 49…U

NA 69…UU

NA 69…U

BRI　…UU

−

−

− −− −

−



Without inner ring With inner ring Without inner ring With inner ring

Met

ric s

erie

s

The identification number of Machined Type Needle Roller Bearings consists of a model code, dimen-sions, any supplemental codes and a classification symbol. Examples are shown below.

Machined Type Needle Roller Bearings are manufac-tured based on JIS (See page A31.). The tolerances for the smallest single roller set bore diameter of bear-ings without inner ring are based on Table 14 on page A33. For BR and BRI series, the accuracy is based on Table 2 and the tolerances for the smallest single roller set bore diameter are based on Table 3.

D


ClearanceRadial internal clearances of Machined Type Needle Roller Bearings are made to the CN clearance shown in Table 18 on page A37. Radial internal clearances of BRI series are based on Table 4.

LubricationBearings with prepacked grease are shown in Table 5. ALVANIA GREASE S2 (Shell Lubricants Japan K.K.) is prepacked as the lubricating grease.In the case of bearings without prepacked grease, perform proper lubrication. Operating them without lubrication will increase the wear of the rolling contact surfaces and shorten their lives.

FitThe recommended fits for Machined Type Needle Roller Bearings are shown in Tables 22 to 24 on pages A41 and A42.

Table 3 Tolerances for smallest single roller setbore diameter Fws min of inch series BR

Fw Nominal roller set bore diameter

mm

∆Fws minDeviation of smallest single roller

set bore diameter

− 18.03430.22641.91050.03870.10480.010

18.03430.22641.91050.03870.10480.010

102.108

unit: μ m

Over Incl.

＋ 43＋ 46＋ 48＋ 51＋ 53＋ 58＋ 61

＋ 20＋ 23＋ 25＋ 25＋ 28＋ 28＋ 31

High Low

Table 4 Radial internal clearance of inch series BRI


mmRadial internal clearance

− 18.03425.90830.22635.05241.91050.03870.10480.010

100.076

18.03425.90830.22635.05241.91050.03870.10480.010

100.076 102.108

unit: μ m

Over Incl.

33414648505056566368

66768286899299

104 117 127

Min. Max.

Oil HoleTable 6.1 shows the number of oil holes of the outer ring and Table 6.2 shows the number of oil holes of the inner ring.When an outer ring with an oil hole is especially required for the type without an oil hole, add "−OH" before the clearance symbol in the identification num-ber. When an outer ring with an oil hole and an oil groove is required for the type without an oil hole, attach "−OG" before the clearance symbol. Example: TAFI 203216− OH C2 P6When an outer ring with multiple oil holes or an inner ring with an oil hole(s) is required, please consult IKO.

MountingMounting dimensions for Machined Type Needle Roller Bearings are shown in the table of dimensions.

Matched Set BearingsWhen using two or more Machined Type Needle Roller Bearings adjacent to each other on the same shaft, it is necessary to obtain an even load distribu-tion. On request, a set of bearings is available, in which bearings are matched to obtain an even load distribution.

Table 6.2 Number of oil holes of the inner ring

Bearing type

Metric series

Inch series

Metric series



NATRI TAFI

GTRI

With a seal on one sideWith seals on both sidesStandard type

Number of oil holes of the inner ring

00−−−−

00−11−

000120

BRI

Nominal bearing bore diameter d mm

d≦ 76.20076.200＜ d

Remark　The type with an oil hole(s) is provided with an oil groove.

Table 6.1 Number of oil holes of the outer ring

Bearing type

Metric series

Inch series

Metric series



RNA，NATR，TRI

GTR，GTRI

With a seal on one sideWith seals on both sidesStandard type

Number of oil holes of the outer ring

1−−−−−−

1−−−11−

1101121

TAF，TAFI

BR，BRI

Nominal roller set bore diameter Fw mm

　　　 Fw ≦ 26 26 ＜ Fw

Fw ≦ 69.85069.850 ＜ Fw

Remark　The type with an oil hole(s) is provided with an oil groove.

Table 5 Bearings with prepacked grease

Bearing type

Metric series

Inch seriesMetric series

Caged Needle Roller

Bearings


RNA, NATR, TRI TAF, TAFI, TAF/SGBR, BRI

GTR, GTRI

With a seal on one side


Standard type

×−−−

−

〇−−〇

−

××××

×


Extended Life Specification Machined Type Needle Roller Bearings

With inner ring Without inner ring

d=10 〜 75mm Fw=14 ～ 85mm

NA 4900 〜 4915 RNA 4900 〜 4915

NA 6901 〜 6915 RNA 6901 〜 6915

TAFI 102216 〜 7510535 TAF 142216 〜 8510535

TRI 153320 〜 7510845 TR 203320 〜 8310845

d Fw

Table 7 Applicable Production Size

Standard heat-treated products Extended life specification products

Model number : NA4904

Load : 10,500 N

Lubrication : Cleaning oil lubricated

Cum

ulat

ive

dam

age

rate

%

Life h

Fig. 1 Life Test ResultRemark　 This table shows the result of life testing under

load conditions at 50% of the basic dynamic rating.The Extended Life Specification with special heat treatment lasted 5 times longer or more in L10 life compared to the standard heat-treated products.

Extended Life Specification Machined Type Needle Roller Bearings are treated with a newly developed special heat treatment that enhances the bearing's surface hardness and toughness, and suppresses the generation and growth of damage on the surface. Significant life extension can be achieved under high load or under the condition of lubrication contaminated with foreign substances.In a life comparison test, as shown in Figure 1, IKO's special heat treated Extended Life Specification products lasted 5 times longer than standard heat-treated products.Extended Life Specification Machined Type Needle Roller Bearings, available according to the "Applicable Production Size" shown in Table 7, are made to order upon request.

D



MACHINED TYPE NEEDLE ROLLER BEARINGS

Without Inner Ring

80 00080 00080 000

555

101011

101210

0.20.20.15

2 4203 0802 420

1 9502 6601 950

8.48.49.8

60 00060 00060 000

777

131414

101012

0.150.20.2

2 9603 6004 610

2 6902 9604 050

11.812.412.4

50 00050 00050 000

888

151515

101216

0.150.20.2

3 9605 0607 080

3 4204 6907 220

13.813.413.4

45 00045 00045 000

999

161617

121610

0.20.20.15

5 4907 6804 530

5 3308 2103 650

14.414.415.8

40 00040 00040 000

101010

171719

121611

0.20.20.2

5 8808 2306 180

5 9709 1905 030

15.415.417.4

35 00035 00035 000

121212

191920

121611

0.30.30.3

6 6109 2506 600

7 26011 2006 310

171718

70 00070 000

66

1212

1012

0.150.2

2 7003 440

2 3203 170

10.810.4

30 00030 000

1515

2323

1620

0.30.3

12 30015 600

14 90020 200

2121

30 00030 00030 000

141414

222222

131620

0.30.30.3

9 23011 70014 800

10 10013 70018 600

202020

Shaft dia.

mm

Identification number Mass (Ref.)

g

RNA 49 RNA 69 RNA 48 TAF TR GTR

Boundary dimensions　mm Allowable rotational speed(2)

min-1Fw D C rs min

(1)

RNA49 TAFRNA69（Fw ≦ 35）

Standard mounting dimension

DaMax.mm


C

N


C0

N

RNA 493

TAF 51010TAF 51012

5 3.4 4.2 4.6

RNA 495

TAF 71410TAF 71412

7 5.9 6.9 8.3

RNA 496

TAF 81512TAF 81516

8 7.4 9.112.9

RNA 497

TAF 91612TAF 91616

9 9.813.2 9.3

RNA 498

TAF 101712TAF 101716

1010.714.312.6

RNA 499

TAF 121912TAF 121916

1212.216.313.6

RNA 494

TAF 61212

6 5.3

6.4

TAF 152316TAF 152320

15 22.5

28

RNA 4900

TAF 142216TAF 142220

1416.52126.5

Notes(1)　　Minimum allowable value of chamfer dimension r 　　 (2)　　Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remarks1.　 TAF series with a roller set bore diameter Fw of 26 mm or less have no oil hole. In others, the outer ring has an oil groove and an

oil hole. 2.　 No grease is prepacked. Perform proper lubrication.

D Fw

C

r

r

Da

D




Without Inner Ring

25 00025 00025 00025 000

16161616

24242424

13162022

0.30.30.30.3

22222222

20 00020 00020 00020 000

20202020

28282828

13162023

0.30.30.30.3

26262626

18 00018 00018 00018 000

22222222

30303030

13162023

0.30.30.30.3

28282828

25 00025 000

1717

2525

1620

0.30.3

2323

20 0007 500

2020

3333

2020

0.30.3

3131

19 00019 000

2121

2929

1620

0.30.3

2727

18 0007 000

2222

3434

2525

0.30.3

3232

20 00020 000

1919

2727

1620

0.30.3

2525

20 00020 00020 000

181818

262626

131620

0.30.30.3

242424


Fw D C rs min(1)

GTR

Shaft dia.

mm


g


16

RNA 4901

RNA 6901

TAF 162416TAF 162420

18.1232930

TAF 172516TAF 172520

17 24.5

30.5

RNA 49/14

TAF 182616TAF 182620

1819.925.532

TAF 192716TAF 192720

19 27

34

20

RNA 4902

RNA 6902

TAF 202816TAF 202820

21.527.535.537

TR 203320

GTR 203320

TAF 212916TAF 212920

21 29

36

22

RNA 4903

RNA 6903

TAF 223016TAF 223020

23.53037.540.5

TR 223425

GTR 223425

73.587

RNA49 TAF TRRNA69（Fw ≦ 35）

59.569



9 66012 30015 50017 100

11 10015 10020 40023 000

10 60013 40017 000

12 80017 50023 600

14 00017 700

18 70025 300

10 90013 90017 60019 300

13 80018 80025 40028 800

24 30029 200

26 50037 200

14 40018 200

20 00027 100

12 90016 300

16 30022 000

29 10037 900

36 80057 800

11 70014 90018 90020 800

15 60021 20028 70032 500


min-1


DaMax.mm


C

N


C0

N

D Fw

C

r

r

DaD Fw

C

r

r

D




Without Inner Ring

15 00015 000

14 00014 000

13 0005 000

17 00017 000

2626

2929

3030

2424

3434

3838

4444

3232

1620

2030

2525

1620

0.30.3

0.30.3

0.30.3

0.30.3

3232

3636

4242

3030

16 00016 00016 00016 000

25252525

33333737

16201730

0.30.30.30.3

31313535

14 00014 00014 00014 000

28282828

37373939

20301730

0.30.30.30.3

35353737

13 00013 00013 00013 000

30303030

40404242

20301730

0.30.30.30.3

38384040

16 00016 0006 0006 000

25252525

38383838

20252025

0.30.30.30.3

36363636


Fw D C rs min(1)

Shaft dia.

mm


g


25

RNA 4904

RNA 6904

TAF 253316TAF 253320

TR 253820TR 253825

GTR 253820GTR 253825

28

RNA 49/22

RNA 69/22

TAF 283720TAF 283730

30

RNA 4905

RNA 6905

TAF 304020TAF 304030

TAF 243216TAF 243220

24

33.5 42 55.5 95.5

71 89 81.5104

51.5 83.5 56.5 97.5

64.5 97.5 64111

32 40.5

TAF 263416TAF 263420

26 34.5

43.5

TAF 293820TAF 293830

29 57

85

TR 304425

GTR 304425

115133

GTRRNA49 TAF TRRNA69（Fw ≦ 35）



15 30019 400

22 50030 500

28 90034 80033 30042 400

35 00044 40046 50063 700

16 30020 600

24 90033 800

21 70031 10021 40036 300

37 10058 90028 90056 900

21 60030 900

37 20059 100

25 10036 00023 70042 100

40 10063 90030 70064 300

15 80020 00021 00035 400

23 70032 10025 00048 900

37 90047 000

52 10076 500


DaMax.mm


C

N


C0

N


min-1

D Fw

C

r

r

DaD Fw

C

r

r

D




Without Inner Ring

12 00012 00012 00012 000

32323232

42424545

20301730

0.30.30.30.3

25 70036 80024 50041 800

42 20067 20032 70064 800

40404343

11 00011 00011 00011 000

35353535

45454747

20301730

0.30.30.30.3

26 90038 60025 20043 000

46 20073 60034 70069 000

43434545

10 00010 00010 00010 000

40404040

50505252

20302036

0.30.30.60.6

29 40042 30031 20053 500

54 10086 20047 80095 700

48484848

4 50032 45 30 0.3 58 000 101 00043

11 0004 500

3535

4848

3030

0.30.3

47 40061 100

72 300110 000

4646

11 00011 000

3737

4747

2030

0.30.3

28 20040 500

50 10079 800

4545

11 00011 000

3838

4848

2030

0.30.3

28 10040 300

50 20080 000

4646

11 0004 000

3838

5252

3030

0.60.6

50 80064 200

81 100121 000

4848

10 0003 500

4040

5555

2020

0.60.6

37 40044 300

55 70073 600

5151


Fw D C rs min(1)

Shaft dia.

mm


g


32

RNA 49/28

RNA 69/28

TAF 324220TAF 324230

68102 76.5133

35

RNA 4906

RNA 6906

TAF 354520TAF 354530

73.5112 72.5125

40

RNA 49/32

RNA 69/32

TAF 405020TAF 405030

83125 96172

GTR 324530 152

TR 354830

GTR 354830

139163

TAF 374720TAF 374730

37 77.5

117

TAF 384820TAF 384830

38

79119

TR 385230

GTR 385230

168195

TR 405520

GTR 405520

129144

GTRRNA49 TAF TRRNA69（Fw ≦ 35）

RNA69

Notes(1)　　Minimum allowable value of chamfer dimension r 　　 (2)　　Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remarks1.　The outer ring has an oil groove and an oil hole. 2.　 No grease is prepacked. Perform proper lubrication.


min-1


DaMax.mm


C

N


C0

N

D F w

C

r

r

D Fw

C

r

r

DaD Fw

C

r

r

D




Without Inner Ring

9 5009 5009 5009 500

42424242

52525555

20302036

0.30.30.60.6

50505151

9 5003 500

4242

5656

3030

0.60.6

5252

8 5008 5008 5003 000

48484848

62626262

22304030

0.60.60.60.6

58585858

9 0003 500

4545

5959

3030

0.60.6

5555

8 5008 500

4747

5757

2030

0.30.3

5555

8 0008 000

5050

6262

2535

0.30.3

6060

9 0009 0009 000

454545

555558

203020

0.30.30.6

535354

8 0008 0003 000

505050

646564

302230

0.60.60.6

606160


Fw D C rs min(1)

Shaft dia.

mm


g


42

RNA 4907

RNA 6907

TAF 425220TAF 425230

86.5130113200

48RNA 4908

RNA 6908

TR 486230

GTR 486230

TR 425630

GTR 425630

183210

TAF 435320TAF 435330

43 88.5

133

TAF 506225TAF 506235

50

159225

RNA 49/42

TR 506430

GTR 506430

210174245

TR 455930

GTR 455930

193225

RNA 49/38

TAF 455520TAF 455530

45

92138120

TAF 475720TAF 475730

47 95

144

152205275240

9 5009 500

4343

5353

2030

0.30.3

5151

GTRRNA49 TAF TR RNA69

Notes(1)　　Minimum allowable value of chamfer dimension r 　　 (2)　　Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remarks1.　 The outer ring has an oil groove and an oil hole. 2.　 No grease is prepacked. Perform proper lubrication.

29 90043 00032 00054 900

56 20089 40050 100

100 000

30 50043 800

58 20092 600

43 00058 000

85 300125 000

53 80067 500

90 100133 000

31 00044 60033 600

60 20095 80054 600

55 10070 300

94 800142 000

31 50045 200

62 20099 100

41 60056 30071 30072 700

67 40099 500

135 000154 000

57 70042 50074 600

104 00070 300

158 000


min-1


DaMax.mm


C

N


C0

N

D F w

C

r

r

D Fw

C

r

r

DaD Fw

C

r

r

D




Without Inner Ring

7 5007 5007 500

6 5006 5006 500

7 5007 500

555555

606060

5252

686870

727275

6868

253522

253522

2240

0.30.30.6

0.30.30.6

0.60.6

666666

707071

6464

7 0007 000

5858

7272

2240

0.60.6

6868

7 0002 500

5858

7777

4545

11

7272

6 5002 500

6262

8181

3838

11

7676

6 5006 500

6363

8080

2545

11

7575

6 0006 0006 000

656565

787882

253525

0.60.61

747477

6 0006 0006 0006 000

68686868

82828585

25352545

0.60.611

78788080


Fw D C rs min(1)

Shaft dia.

mm


g


RNA 6909

RNA 4909　

52 197

355

RNA 6910

RNA 4910

58

179320

TR 628138

GTR 62813862 460

520

RNA 6911

RNA 4911

63 265

475

TR 587745

GTR 587745

515590

RNA 49/48

TAF 556825TAF 556835

55193255188

RNA 49/52

TAF 607225TAF 607235

60187260205

RNA 49/58

TAF 657825TAF 657835

65225315275

68

RNA 4912

RNA 6912

TAF 688225TAF 688235

250350285510

RNA49 TAF TR RNA69

Notes(1)　　Minimum allowable value of chamfer dimension r 　　 (2)　　Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remarks1.　 The outer ring has an oil groove and an oil hole. 2.　No grease is prepacked. Perform proper lubrication.

GTR

43 50074 600

73 300147 000

46 20079 200

82 100164 000

49 60067 00058 900

112 000164 000101 000

45 40061 20044 300

94 000138 00076 300

104 000135 000

191 000280 000

47 50064 10047 100

103 000151 00085 100

92 000118 000

166 000241 000

57 60098 700

97 200194 000

54 80072 00060 200

103 000

117 000166 000105 000211 000


min-1


DaMax.mm


C

N


C0

N

D F w

C

r

r

D Fw

C

r

r

DaD Fw

C

r

r

D




Without Inner Ring

Shaft dia.

mm


g


TR 708945

GTR 708945

RNA 6913

RNA 4913

72

TAF 739025TAF 739035

73

RNA 49/62

TAF 708525TAF 708535

70

605690

325585

335475

280395320

RNA 49/68

TAF 759225TAF 759235

75345485470

TR 8310845

GTR 831084583 995

1 090

80

RNA 4914

RNA 6914

TAF 809525TAF 809535

315445495910

85

RNA 4915

RNA 6915

TAF 8510525

TAF 8510535

435525610960


55 50073 00061 500

120 000171 000109 000

62 700108 000

113 000227 000

76 30086 200

102 000138 000

145 000169 000210 000331 000

114 000147 000

228 000336 000

61 10080 400

127 000181 000

62 10081 70079 900

131 000186 000147 000

59 40078 10083 200

134 000

137 000195 000158 000311 000

146 000190 000

270 000396 000

5 5002 000

5 5005 500

5 5005 500

5 0005 0005 0005 000

4 5004 5004 5004 500

5 5005 5005 500

7070

7373

7272

80808080

85858585

707070

8989

9090

9090

9595

100100

105105105105

858588

4545

2535

2545

25353054

25303554

253525

11

11

11

1111

1111

0.60.61

8484

8585

8585

90909595

100100100100

818183

5 5005 5005 500

757575

929295

253530

111

878790

5 0001 800

8383

108108

4545

11

103103


Fw D C rs min(1)



min-1


DaMax.mm


C

N


C0

N

D F w

C

r

r

D Fw

C

r

r

DaD Fw

C

r

r

D




Without Inner Ring

Shaft dia.

mm


g


RNA 49/82

TAF 9511526

TAF 9511536

95

90

RNA 4916

RNA 6916

TAF 9011025

TAF 9011035

495575690

455550640

1 010

105

RNA 4918

RNA 6918

TAF 10512526

TAF 10512536

545740760

1 360

RNA 4917

RNA 6917

TAF 10012026

TAF 10012036

525705725

1 300

TR 9311850

GTR 931185093 1 210

1 340

TR 10012550

GTR 10012550

100

1 2901 440

TR 9512045

GTR 9512045

1 1201 230



77 30087 300

103 000143 000

150 000175 000217 000351 000

79 70090 000

106 000

159 000186 000231 000

155 000204 000

305 000455 000

82 400110 000110 000173 000

168 000244 000244 000467 000

165 000224 000

329 000509 000

172 000234 000

355 000549 000


Fw D C rs min(1)

90909090

9393

110110110110

118118

25303554

5050

1111

11

105105105105

113113

4 5004 5004 5004 500

4 5001 600

959595

115115115

263036

111

110110110

4 0004 0004 000

9595

120120

4545

1.51.5

112112

4 0001 600

100100100100

120120120120

26353663

11.111.1

115113.5115113.5

4 0004 0004 0004 000

100100

105105105105

125125

125125125125

5050

26353663

1.51.5

11.111.1

117117

120118.5120118.5

4 0001 500

4 0004 0004 0004 000

178 000258 000258 000490 000

84 700113 000113 000178 000


min-1


DaMax.mm


C

N


C0

N

D F w

C

r

r

D Fw

C

r

r

DaD Fw

C

r

r

D


106 000116 000134 000182 000

240 000271 000324 000514 000

145 000233 000315 000

329 000414 000614 000

93 200 239 000

152 000 357 000

96 900 259 000

187 000 435 000

183 000245 000

395 000603 000

116 000 340 000

307 000409 000

625 000923 000


Fw D C rs min(1)

110110110110

110110

130130130130

135135

30354063

5050

11.111.1

1.51.5

125123.5125123.5

127127

3 5003 5003 5003 500

3 5001 400

115115115

140153153

405050

1.11.51.5

133.5145145

3 5003 5001 300

120 140 30 1 135 3 500

125 150 40 1.1 143.5 3 000

130 150 30 1 145 3 000

135

140140

145

150150150

155

160

165

170

165

178178

165

180188188

175

190

190

210

45

6060

35

506060

35

50

40

60

1.1

1.51.5

1.1

1.51.51.5

1.1

1.5

1.1

2

158.5

170170

158.5

172180180

168.5

182

183.5

201

3 000

3 0001 100

3 000

2 5002 5001 000

540 000675 000989 000

215 000320 000423 000

363 000

580 000

446 000

712 000

120 000

224 000

168 000

324 000

2 500

2 500

2 500

2 500

GTRRNA49 RNA48TAF TR

RNA69


min-1


DaMax.mm


C

N


C0

N


Without Inner Ring


Shaft dia.

mm


g


110

115

120

125

130

135

140

145

150

155

160

165

170

RNA 4919

RNA 4920

RNA 4922

RNA 4924

RNA 4926

RNA 4928

RNA 4930

RNA 4826

RNA 4828

RNA 4830

TR 15018860

GTR 15018860

RNA 6919

RNA 4822

RNA 4824

TAF 11013030

TAF 11013040

TR 11013550

TR 11515350

TR 14017860

GTR 11013550

GTR 11515350

GTR 14017860

1 4001 560

1 1902 3502 600

790

1 280

850

1 930

3 3203 730

1 100

2 3603 5403 970

1 170

2 500

1 750

4 090

660770880

1 420


D F w

C

r

r

D Fw

C

r

r

DaD Fw

C

r

r

D


474 000

761 000

567 000

810 000

602 000

989 000

726 000

1 020 000

766 000

1 120 000

833 000

1 200 000

173 000

337 000

211 000

347 000

218 000

434 000

249 000

440 000

255 000

518 000

266 000

536 000

1 150 0001 320 000

345 000565 000

1 220 000

1 900 000

1 550 000

2 040 000

1 900 000

2 650 000

2 040 000

354 000

847 000

486 000

877 000

610 000

1 130 000

635 000


Fw D C rs min(1)

175

180

185

190

195

205

210

215

220

225

240

245

200

220

215

230

225

250

240

260

250

280

270

300

40

60

45

60

45

69

50

69

50

80

50

80

1.1

2

1.1

2

1.1

2

1.5

2

1.5

2.1

1.5

2.1

193.5

211

208.5

221

218.5

241

232

251

242

269

262

289

2 500

1 900

1 900

1 900

1 900

1 900

1 800

1 700

1 600

1 600

1 500

1 400

265265

300320

6080

22.1

291309

1 3001 300

285

290

305

310

330

340

350

320

360

350

380

380

420

400

60

100

69

100

80

118

80

2

2.1

2

2.1

2.1

3

2.1

311

349

341

369

369

407

389

1 100

1 100

950

950

900

850

750

RNA49 RNA48


DaMax.mm


min-1


C

N


C0

N


Without Inner Ring


Shaft dia.

mm


g


175

180

185

190

195

205

210

215

220

225

240

245

265

285

290

305

310

330

340

350

RNA 4932

RNA 4934

RNA 4936

RNA 4938

RNA 4940

RNA 4944

RNA 4948

RNA 4848

RNA 4952

RNA 4956

RNA 4960

RNA 4852

RNA 4856

RNA 4860

RNA 4864

RNA 4832

RNA 4834

RNA 4836

RNA 4838

RNA 4840

RNA 4844

1 850

4 310

2 700

4 530

2 840

6 250

3 380

6 500

3 520

10 400

3 820

11 200

5 67012 000

6 070

21 200

9 750

22 500

13 200

33 400

14 100


D Fw

C

r

r

Da

D



Fw D C rs min(1)

360

370

380

390

400

415

430

450

470

490

440

420

460

440

480

480

520

540

560

600

118

80

118

80

118

100

140

140

140

160

3

2.1

3

2.1

3

2.1

4

4

4

4

427

409

447

429

467

469

504

524

544

584

750

700

700

650

600

600

500

500

500

400

RNA49 RNA48

2 830 000

2 140 000

3 020 000

2 320 000

3 200 000

2 860 000

4 030 000

4 270 000

4 510 000

5 140 000

1 170 000

651 000

1 220 000

680 000

1 260 000

951 000

1 540 000

1 590 000

1 640 000

1 910 000


DaMax.mm


C

N


C0

N


min-1


Without Inner Ring


Shaft dia.

mm


g


360

370

380

390

400

415

430

450

470

490

RNA 4964

RNA 4968

RNA 4972

RNA 4976

RNA 4980

RNA 4984

RNA 4988

RNA 4868

RNA 4872

RNA 4876

35 200

14 800

37 000

15 600

38 700

27 900

56 400

58 800

61 200

86 900


D Fw

C

r

r

Da

D



2 9605 0607 080

2 690 4 690 7 220

4 5305 8808 230

3 6505 9709 190

6 180 5 030

6 6109 2506 600

7 26011 2006 310

9 23011 70014 800

10 10013 70018 600

9 66012 30015 50017 100

11 10015 10020 40023 000

3 9605 4907 680

3 4205 3308 210

With Inner Ring

131515

101216

0.150.20.2

788

0.50.50.5

6.2 6.6 6.6

6.7 7.7 7.7

60 00050 00050 000

LRT 5710LRT 5812LRT 5816

11.813.413.4

151616

101216

0.150.20.2

899

0.50.50.5

7.2 7.6 7.6

7.7 8.7 8.7

50 00045 00045 000

LRT 6810LRT 6912LRT 6916

13.814.414.4

171717

101216

0.150.20.2

91010

0.50.50.5

8.2 8.6 8.6

8.7 9.7 9.7

45 00040 00040 000

LRT 7910LRT 71012LRT 71016

15.815.415.4

191920

121611

0.30.30.3

121212

0.50.50.5

111111

11.511.511.5

35 00035 00035 000

LRT 91212LRT 91216LRT 91211

171718

222222

131620

0.30.30.3

141414

0.50.50.5

121212

131313

30 00030 00030 000

LRT 101413LRT 101416LRT 101420

202020

19 11 0.2 10 0.5 9.6 9.9 40 000 LRT 8101117.4

24242424

13162022

0.30.30.30.3

16161616

0.50.50.50.5

14141414

15151515

25 00025 00025 00025 000

LRT 121613LRT 121616LRT 121620LRT 121622

22222222

Boundary dimensions　mm Standard mounting dimensions　mm


D C B rs min Fw S Min. Max. Da

Max. (1) da(2)

Notes(1)　　Minimum allowable value of chamfer dimension r 　　 (2)　　Allowable axial shift amount of inner ring to outer ring 　　 (3)　　Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remarks1.　 TAFI series with a bore diameter d of 22 mm or less have no oil hole. In others, the outer ring has an oil groove and an oil hole. 2.　No grease is prepacked. Perform proper lubrication.

Shaft dia.

mm


g

NA 49 NA 69 NA 48 TAFI TRI GTRId

NA 495

TAFI 51512TAFI 51516

7.311.916.7

555

5

NA 496


9.11317.5

666

　 NA49 TAFI　 NA69（d ≦ 30）

NA 497


11.214.319.2

777

7

NA 499


16.722.516.7

999

9

NA 4901

NA 6901

TAFI 122416TAFI 122420

26.533.542.544.5

12121212

12

NA 4900

TAFI 102216TAFI 102220

243038

101010

10

NA 498 15 88

6


C

N


C0

N


min-1


D F wd

C

r

r

r

r

S

Dada

D




43.5 54 39 67

17171717

104117

1717

52 67.5 87152

22222222

With Inner Ring

27272828

16201323

0.30.30.30.3

19192020

0.50.50.30.3

17171717

18181919

20 00020 00020 00020 000

LRT 151916LRT 151920LRT 152013LRT 152023

25252626

3333

2020

20.520.5

0.30.3

2020

0.3

1717

1919

20 0007 500

LRT 152020LRTZ 152020

3131

3434

2525

25.525.5

0.30.3

2222

0.5

1919

2121

18 0007 000

LRT 172225LRTZ 172225

3232

29293030

16201323

0.30.30.30.3

21212222

0.50.50.30.3

19191919

20202121

19 00019 00018 00018 000

LRT 172116LRT 172120LRT 172213LRT 172223

27272828

32323737

16201730

0.30.30.30.3

24242525

0.50.50.50.5

22222222

23232424

17 00017 00016 00016 000

LRT 202416LRT 202420LRT 202517LRT 202530

30303535

38383838

20252025

20.525.520.525.5

0.30.30.30.3

25252525

0.30.5

22222222

24242424

16 00016 0006 0006 000

LRT 202520LRT 202525LRTZ 202520LRTZ 202525

36363636

34343939

16201730

0.30.30.30.3

26262828

0.50.510.5

24242424

25252727

15 00015 00014 00014 000

LRT 222616LRT 222620LRT 222817LRT 222830

32323737




Max. (1) da(2)

Shaft dia.

mm


g


NA 4902

NA 6902

TAFI 152716TAFI 152720

39.5 50 35 61

1515151515

TRI 153320

GTRI 153320

81 90.5

1515

17

NA 4903

NA 6903

TAFI 172916TAFI 172920

TRI 173425

GTRI 173425

NA 4904

NA 6904

TAFI 203216TAFI 203220

48.5 61 78.5136

20202020

TRI 203820TRI 203825

GTRI 203820GTRI 203825

99124110138

20202020

20

NA 49/22

NA 69/22

TAFI 223416TAFI 223420

22

Notes(1)　　Minimum allowable value of chamfer dimension r 　　 (2)　　Allowable axial shift amount of inner ring to outer ring 　　 (3)　　Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remarks1.　TAFI series with a bore diameter d of 22 mm or less have no oil hole. In others, the outer ring has an oil groove and an oil hole. 2.　No grease is prepacked. Perform proper lubrication.

TRI　 NA49 TAFI　 NA69（d ≦ 30）

GTRI


C

N


C0

N

16 30020 60021 40036 300

14 00017 70010 90019 300

24 90033 80028 90056 900

18 70025 30013 80028 800

14 40018 20011 70020 800

20 00027 10015 60032 500

29 10037 900

36 80057 800

15 30019 40021 00035 400

22 50030 50025 00048 900

28 90034 80033 30042 400

35 00044 40046 50063 700

24 30029 200

26 50037 200


min-1

D F wd

C

r

r

r

r

S

DadaD

BC

r

r

r

r

Fwd

BC

r

r

r

r

D d Fw

D




21 60030 90023 70042 100

37 20059 10030 70064 300

25 70036 80024 50041 800

42 20067 20032 70064 800

58 000 101 000

26 90038 60025 20043 000

46 20073 60034 70069 000

72 300110 000

37 90047 000

52 10076 500

With Inner Ring

38384242

20301730

0.30.30.30.3

29293030

0.510.50.5

27272727

28282929

14 00014 00013 00013 000

LRT 252920LRT 252930LRT 253017LRT 253030

36364040

42424545

20301730

0.30.30.30.3

32323232

0.5111

30303030

31313131

12 00012 00012 00012 000

LRT 283220LRT 283230LRT 283217LRT 283230

40404343

45454747

20301730

0.30.30.30.3

35353535

0.30.50.50.5

32323232

34343434

11 00011 00011 00011 000

LRT 303520LRT 303530LRT 303517LRT 303530

43434545

4444

2525

25.525.5

0.30.3

3030

0.5

2727

2929

13 0005 000

LRT 253025LRTZ 253025

4242

4848

3030

30.530.5

0.30.3

3535

1

3232

3434

11 0004 500

LRT 303530-1LRTZ 303530

4646

45 30 30.5 0.3 32 30 31 4 500 LRTZ 28323043

474752

203020

0.30.30.6

373740

0.30.50.5

343436

363639

11 00011 00010 000

LRT 323720LRT 323730LRT 324020

454548

525252

303630

30.5

30.5

0.60.60.6

384038

0.50.3

363636

373937

11 00010 0004 000

50 10079 80047 800

47 40061 100

LRT 323830LRT 324036LRTZ 323830

484848




Max. (1) da(2)

Notes(1)　　Minimum allowable value of chamfer dimension r 　　 (2)　　Allowable axial shift amount of inner ring to outer ring 　　 (3)　　Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remarks1.　The outer ring has an oil groove and an oil hole. 2.　No grease is prepacked. Perform proper lubrication.

Shaft dia.

mm


g


NA 4905

NA 6905

TAFI 253820TAFI 253830

82123 92.5160

2525252525

NA 49/28

NA 69/28

TAFI 284220TAFI 284230

96.5145101176

28282828

28

TRI 254425

GTRI 254425

157175

2525

GTRI 284530 196 28

NA 4906

NA 6906

TAFI 304520TAFI 304530

112171106184

3030303030

TRI 304830

GTRI 304830

199225

3030

NA 49/32

TAFI 324720TAFI 324730

121180165

323232

32

NA 69/32

TRI 325230

GTRI 325230

245295270

323232

TRI　 NA49 TAFI　 NA69（d ≦ 30）

GTRINA69


C

N


C0

N


min-1

50 80053 50064 200

81 10095 700

121 000

28 20040 50031 200

D F wd

C

r

r

r

r

D F w

C

r

r

r

r

d D

BC

r

r

r

r

Fwd Dada

S

BC

r

r

r

r

D d Fw

D




136205

3838

300285520335

45454545

149225

4242

230320

4545

305340

4242

With Inner Ring

Shaft dia.

mm


g


NA 4907

NA 6907

TAFI 355020TAFI 355030

129192178320

3535353535

TAFI 385320TAFI 385330

38

NA 4908

NA 6908

TRI 405930

GTRI 405930

270245440300

40404040

NA 4909

NA 6909

TRI 456430

GTRI 456430

TRI 355630

GTRI 355520GTRI 355630

280191310

353535

TAFI 405520TAFI 405530

143215

4040

40

TAFI 425720TAFI 425730

42

TAFI 456225TAFI 456235

45

　 NA49 TAFI NA69


TRI 426230

GTRI 426230

50505555

20302036

0.30.30.60.6

40404242

0.30.50.50.3

37373939

39394141

10 00010 0009 5009 500

LRT 354020LRT 354030LRT 354220LRT 354236

48485151

59626259

30224030

30.5

30.5

0.60.60.60.6

45484845

10.50.3

44444444

44.5474744.5

9 0008 5008 5003 500

LRT 404530-1LRT 404822LRT 404840LRTZ 404530

55585855

64686864

30224030

30.5

30.5

0.60.60.60.6

50525250

10.50.3

49494949

49.5515149.5

8 0007 5007 5003 000

LRT 455030LRT 455222LRT 455240LRTZ 455030

60646460

565556

302030

30.520.530.5

0.60.60.6

424042

0.5

393939

4139.541

9 5003 5003 500

LRT 354230LRTZ 354020LRTZ 354230

525152

5353

2030

0.30.3

4343

0.30.5

4040

4242

9 5009 500

LRT 384320LRT 384330

5151

5555

2030

0.30.3

4545

0.30.5

4242

4444

9 0009 000

LRT 404520LRT 404530

5353

5757

2030

0.30.3

4747

0.30.5

4444

4646

8 5008 500

LRT 424720LRT 424730

5555

6262

3030

30.530.5

0.60.6

4848

0.5

4646

4747

8 5003 000

LRT 424830LRTZ 424830

5858

6262

2535

0.30.3

5050

0.51

4747

4949

8 0008 000

LRT 455025LRT 455035

6060




Max. (1) da(2)

TRI GTRI

85 300125 000

104 00073 300

147 000158 000

54 100 86 200 50 100100 000

58 20092 600

60 20095 800

94 80067 400

135 000142 000

62 20099 100

99 500154 000

90 10073 600

133 000

43 00058 000

57 70043 50074 60074 600

29 40042 30032 00054 900

30 50043 800

31 00044 600

55 10041 60071 30070 300

31 50045 200

56 30072 700

53 80044 30067 500


C

N


C0

N


min-1

D F wd

C

r

r

r

r

D Fw

C

r

r

r

r

d D

BC

r

r

r

r

Fwd Dada

S

BC

r

r

r

r

D d Fw

D




With Inner Ring

Shaft dia.

mm


g


NA 4910

NA 6910

TAFI 506825TAFI 506835

270365295530

5050505050

NA 4912

NA 6912

TAFI 608225TAFI 608235

395560440785

6060606060

NA 4914

NA 6914

TAFI 709525TAFI 709535

540755765

1 400

70707070

70

NA 4911

NA 6911

TAFI 557225TAFI 557235

275380410730

5555555555

TRI 558138

GTRI 558138

650710

5555

TRI 608945

GTRI 608945

9601 050

6060

NA 4913

NA 6913

TAFI 659035

470710840

656565

65

TRI 507745

GTRI 507745

755825

5050

　 NA49 TAFI NA69


8181

3838

38.538.5

11

6262

1.5

6060

60.560.5

6 5002 500

LRT 556238LRTZ 556238

7676

909090

253545

111

727372

110.5

707070

70.57170.5

5 5005 5005 500

LRT 657225LRT 657335LRT 657245

858585

68687272

25352240

0.30.30.60.6

55555858

0.510.50.3

52525454

54545757

7 5007 5007 0007 000

LRT 505525LRT 505535LRT 505822LRT 505840

66666868

7777

4545

45.545.5

11

5858

2

5555

5757

7 0002 500

LRT 505845LRTZ 505845

7272

72728080

25352545

0.30.311

60606363

0.5110.5

57576060

59596161

6 5006 5006 5006 500

LRT 556025LRT 556035LRT 556325LRT 556345

70707575

82828585

25352545

0.60.611

68686868

0.3110.5

64646565

66666666

6 0006 0006 0006 000

LRT 606825LRT 606835LRT 606825-1LRT 606845

78788080

9595

100100

25353054

1111

80808080

0.311.51

75757575

78787878

5 0005 0005 0005 000

LRT 708025LRT 708035LRT 708030LRT 708054

90909595

8989

4545

45.545.5

11

7070

2

6565

6868

5 5002 000

LRT 607045LRTZ 607045

8484




Max. (1) da(2)

TRI GTRI

59 40078 10083 200

134 000

45 40061 20046 20079 200

137 000195 000158 000311 000

94 000138 00082 100

164 000

47 50064 10057 60098 700

103 000151 00097 200

194 000

92 000118 000

166 000241 000

54 80072 00060 200

103 000

117 000166 000105 000211 000

114 000147 000

228 000336 000

62 70080 400

108 000

113 000181 000227 000

104 000135 000

191 000280 000


C

N


C0

N


min-1

D F wd

C

r

r

r

r

D Fw

C

r

r

r

r

d D

BC

r

r

r

r

Fwd Dada

S

BC

r

r

r

r

D d Fw

D




With Inner Ring

105105105105

25303554

1111

85858585

0.51.51.51

80808080

83 83 83 83

4 5004 5004 5004 500

LRT 758525LRT 758530LRT 758535LRT 758554

100100100100

110110110110

25303554

1111

90909090

0.51.51.51

85858585

88 88 88 88

4 5004 5004 5004 500

LRT 809025LRT 809030LRT 809035LRT 809054

105105105105

115115120120

26363563

111.11.1

9595

100100

1210.5

909091.591.5

93 93 98 98

4 0004 0004 0004 000

LRT 859526LRT 859536LRT 8510035LRT 8510063

110110113.5113.5

118120118120

50455045

50.545.550.545.5

11.511.5

93959395

32.5

90939093

91 93.5 91 93.5

4 5004 0001 6001 600

LRT 859350LRT 859545LRTZ 859350LRTZ 859545

113112113112

108108

4545

45.545.5

11

8383

2.5

8080

81 81

5 0001 800

LRT 758345LRTZ 758345

103103

120120125

263635

111.1

100100105

121

959596.5

98 98103

4 0004 0004 000

LRT 9010026LRT 9010036LRT 9010535

115115118.5

125125125

506350

50.5

50.5

1.51.11.5

100105100

30.5

9896.598

98.5103 98.5

4 0004 0001 500

LRT 9010050LRT 9010563LRTZ 9010050

117118.5117




Max.(1) da(2)

Shaft dia.

mm


g


NA 4915

NA 6915

TAFI 7510525

TAFI 7510535

675810945

1 480

7575757575

NA 4917

NA 6917

TAFI 8511526TAFI 8511536

7751 0801 2802 340

85858585

85

TRI 8511850TRI 8512045

GTRI 8511850GTRI 8512045

1 6401 6101 7801 720

85858585

NA 4916

NA 6916

TAFI 8011025

TAFI 8011035

710855995

1 560

80808080

80

NA 4918

TAFI 9012026TAFI 9012036

8201 1401 350

909090

90

NA 6918

TRI 9012550

GTRI 9012550

1 8702 4602 020

909090

TRI 7510845

GTRI 7510845

1 3401 440

7575


TRI　 NA49 TAFI GTRINA69

172 000178 000234 000

76 30086 200

102 000138 000

355 000490 000549 000

145 000169 000210 000331 000

77 30087 300

103 000143 000

150 000175 000217 000351 000

79 700106 000110 000173 000

159 000231 000244 000467 000

165 000155 000224 000204 000

329 000305 000509 000455 000

82 400110 000113 000

168 000244 000258 000

146 000190 000

270 000396 000


C

N


C0

N


min-1

D F wd

C

r

r

r

r

D Fw

C

r

r

r

r

d D

BC

r

r

r

r

Fwd Dada

S

BC

r

r

r

r

D d Fw

D



2 8806 380

150150

With Inner Ring

125125130130

26363563

111.11.1

105105110110

1210.5

100100101.5101.5

103103108108

4 0004 0003 5003 500

LRT 9510526LRT 9510536LRT 9511035LRT 9511063

120120123.5123.5

130130

3040

11

110110

0.51.5

105105

108108

3 5003 500

LRT 10011030LRT 10011040

125125

135140135

504050

50.5

50.5

1.51.11.5

110115110

31

108106.5108

108.5113108.5

3 5003 5001 400

LRT 10011050LRT 10011540LRTZ 10011050

127133.5127

153153

5050

50.550.5

1.51.5

115115

3

113113

113.5113.5

3 5001 300

LRT 10511550LRTZ 10511550

145145

140150

3040

11.1

120125

11

115116.5

118123

3 5003 000

LRT 11012030LRT 11012540

135143.5

150165

3045

11.1

130135

12

125126.5

128133

3 0003 000

LRT 12013030LRT 12013545

145158.5

178178

6060

60.560.5

1.51.5

140140

2.5

133133

138138

3 0001 100

LRT 12514060LRTZ 12514060

170170

165180

3550

1.11.5

145150

12.5

136.5138

143148

3 0002 500

LRT 13014535LRT 13015050

158.5172

188188

6060

60.560.5

1.51.5

150150

2.5

143143

148148

2 5001 000

LRT 13515060LRTZ 13515060

180180

175190

3550

1.11.5

155160

12.5

146.5148

153158

2 5002 500

LRT 14015535LRT 14016050

168.5182

190210

4060

1.12

165170

1.53

156.5159

163168

2 5002 500

LRT 15016540LRT 15017060

183.5201




Max.(1) da(2)

Shaft dia.

mm


g


NA 4919

NA 6919

TAFI 9512526TAFI 9512536

8601 1901 4202 580

95959595

95

TAFI 10013030TAFI 10013040

1 0401 380

100100

100

TRI 10515350

GTRI 10515350

3 0203 270

105105

105

NA 4922

NA 4822

1 2002 120

110110

110

NA 4924

NA 4824

1 3002 960

120120

120

TRI 12517860

GTRI 12517860

4 7805 180

125125

125

NA 4926

NA 4826

1 9604 030

130130

130

TRI 13518860

GTRI 13518860

5 1005 530

135135

135

NA 4928

NA 4828

2 1004 290

140140

140

NA 4930

NA 4830

150

NA 4920

TRI 10013550

GTRI 10013550

2 0401 9602 200

100100100

TRINA49 TAFINA48

GTRINA69


116 000215 000

320 000423 000

120 000224 000

168 000324 000

84 700113 000116 000182 000

340 000540 000

675 000989 000

363 000580 000

446 000712 000

178 000258 000271 000514 000

183 000145 000245 000

395 000329 000603 000

233 000315 000

414 000614 000

93 200152 000

239 000357 000

96 900187 000

259 000435 000

307 000409 000

625 000923 000

106 000134 000

240 000324 000


C

N


C0

N


min-1


D F wd

C

r

r

r

r

D Fw

C

r

r

r

r

d

D

BC

r

r

r

r

Fwd Dada

S

BC

r

r

r

r

D d Fw

D



With Inner Ring

200220

4060

1.12

175180

1.53

166.5169

173178

2 5001 900

LRT 16017540LRT 16018060

193.5211

215230

4560

1.12

185190

1.53

176.5179

183188

1 9001 900

LRT 17018545LRT 17019060

208.5221

225250

4569

1.12

195205

1.53

186.5189

193203

1 9001 900

LRT 18019545LRT 18020569

218.5241

240260

5069

1.52

210215

1.53

198199

208213

1 8001 700

LRT 19021050LRT 19021569

232251

250280

5080

1.52.1

220225

1.54

208211

218223

1 6001 600

LRT 20022050LRT 20022580

242269

270300

5080

1.52.1

240245

1.54

228231

238243

1 5001 400

LRT 22024050LRT 22024580

262289

300320

6080

22.1

265265

24

249251

262262

1 3001 300

LRT 24026560LRT 24026580

291309

350380

69100

22.1

305310

2.54

289291

302307

950 950

LRT 28030569LRT 280310100

341369

320360

60100

22.1

285290

24

269271

282287

1 1001 100

LRT 26028560LRT 260290100

311349

380420

80118

2.13

330340

2.54

311313

327337

900 850

LRT 30033080LRT 300340118

369407

400440

80118

2.13

350360

2.54

331333

347357

750 750

LRT 32035080LRT 320360118

389427

420460

80118

2.13

370380

2.54

351353

367377

700 700

LRT 34037080LRT 340380118

409447




Max.(1) da(2)

NA49 NA48

Shaft dia.

mm


g


NA 4932

NA 4832

3 0506 750

160160

160

NA 4934

NA 4834

4 1207 110

170170

170

NA 4936

NA 4836

4 34010 200

180180

180

NA 4938

NA 4838

5 76010 700

190190

190

NA 4940

NA 4840

6 04015 400

200200

200

NA 4944

NA 4844

6 57016 700

220220

220

NA 4952

NA 4852

11 00031 100

260260

260

NA 4956

NA 4856

15 80033 100

280280

280

NA 4960

NA 4860

22 30051 400

300300

300

NA 4964

NA 4864

23 70054 400

320320

320

NA 4968

NA 4868

25 00057 300

340340

340

NA 4948

NA 4848

10 20018 000

240240

240


173 000337 000

211 000347 000

218 000434 000

249 000440 000

255 000518 000

266 000536 000

345 000565 000

354 000847 000

486 000877 000

610 0001 130 000

635 0001 170 000

651 0001 220 000

474 000761 000

567 000810 000

602 000989 000

726 0001 020 000

766 0001 120 000

833 0001 200 000

1 150 0001 320 000

1 220 0001 900 000

1 550 0002 040 000

1 900 0002 650 000

2 040 0002 830 000

2 140 0003 020 000


C

N


C0

N


min-1


D F wd

C

r

r

r

r

Dada

S

D



With Inner Ring

440480

80118

2.13

390400

2.54

371373

387397

650600

LRT 36039080LRT 360400118

429467

480520

100140

2.14

415430

35

391396

412427

600500

LRT 380415100LRT 380430140

469504

540 140 4 450 5 416 447 500 LRT 400450140524

560 140 4 470 5 436 467 500 LRT 420470140544

600 160 4 490 5 456 487 400 LRT 440490160584




Max.(1) da(2)

Shaft dia.

mm


g


NA 4972

NA 4872

26 40060 200

360360

360

NA 4976

NA 4876

44 60090 300

380380

380

NA 4980 94 400 400400

NA 4984 98 500 420420

NA 4988 131 000 440440

NA49 NA48


680 0001 260 000

951 0001 540 000

1 590 000

1 640 000

1 910 000

2 320 0003 200 000

2 860 0004 030 000

4 270 000

4 510 000

5 140 000


C

N


C0

N


min-1


D F wd

C

r

r

r

r

Dada

S

D



min-1

BR

Notes(1)　　Maximum permissible corner radius of the housing 　　 (2)　　Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remarks1.　The outer ring has an oil groove and an oil hole. 2.　No grease is prepacked. Perform proper lubrication.

Shaft dia.mm

(inch)


Mass (Ref.)

g



DaMax.

ras max　

(1)

15.875（58）19.050（34）22.225（78）25.400（1）28.575

（118）31.750

（114）34.925

（138）38.100

（112）41.275

（158）

44.450（134）

47.625（178）

49

56 75

63 84.5

69 92.5

102128

110138

119149

149187

158199

170215250

225

15.875（ 5 8）

19.050（ 3 4）19.050（ 3 4）

22.225（ 7 8）22.225（ 7 8）

25.400（1 ）25.400（1 ）

28.575（1 1 8）28.575（1 1 8）

31.750（1 1 4）31.750（1 1 4）

34.925（1 3 8）34.925（1 3 8）

38.100（1 1 2）38.100（1 1 2）

41.275（1 5 8）41.275（1 5 8）

44.450（1 3 4）44.450（1 3 4）44.450（1 3 4）

47.625（1 7 8）

28.575（1 1 8）

31.750（1 1 4）31.750（1 1 4）

34.925（1 3 8）34.925（1 3 8）

38.100（1 1 2）38.100（1 1 2）

41.275（1 5 8）41.275（1 5 8）

44.450（1 3 4）44.450（1 3 4）

47.625（1 7 8）47.625（1 7 8）

52.388（2 116）52.388（2 116）

55.562（2 316）55.562（2 316）

58.738（2 516）58.738（2 516）60.325（2 3 8）

61.912（2 716）

19.050（ 3 4）

19.050（ 3 4）25.400（1 ）

19.050（ 3 4）25.400（1 ）

19.050（ 3 4）25.400（1 ）

25.400（1 ）31.750（1 1 4）

25.400（1 ）31.750（1 1 4）

25.400（1 ）31.750（1 1 4）

25.400（1 ）31.750（1 1 4）

25.400（1 ）31.750（1 1 4）

25.400（1 ）31.750（1 1 4）31.750（1 1 4）

31.750（1 1 4）

24.5

26.526.5

29.729.7

32.932.9

3636

39.239.2

42.442.4

45.145.1

48.348.3

51.551.553.1

54.7

BR 101812

BR 122012BR 122016

BR 142212BR 142216

BR 162412BR 162416

BR 182616BR 182620

BR 202816BR 202820

BR 223016BR 223020

BR 243316BR 243320

BR 263516BR 263520

BR 283716BR 283720BR 283820

BR 303920

0.6

11

11

11

11

11

11

1.51.5

1.51.5

1.51.51.5

1.5

18 900

21 70027 600

23 00029 100

25 30032 100

34 90043 200

36 00044 600

38 50047 700

43 70054 200

44 80055 600

47 50058 90058 900

60 100

19 700

24 40033 100

27 10036 800

31 90043 300

49 90065 600

53 50070 300

60 00078 900

66 90088 200

70 90093 400

78 200103 000103 000

108 000

25 000

20 00020 000

18 00018 000

16 00016 000

14 00014 000

13 00013 000

11 00011 000

11 00011 000

9 5009 500

9 0009 0009 000

8 500

Fw D C

Without Inner Ring, Inch Series


C

N


C0

N


Shaft dia. 15.875−47.625mm

D Fw

C

Da

ra

D



min-1


C

N


C0

N

Notes(1)　　Maximum permissible corner radius of the housing 　　 (2)　　Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remarks1.　 In bearings with a roller set bore diameter Fw of 69.850 mm or less, the outer ring has an oil groove and an oil hole. In others, the

outer ring has an oil groove and two oil holes. 2.　No grease is prepacked. Perform proper lubrication.

Shaft dia. mm

(inch)

Identification

number

Mass (Ref.)

g



DaMax.

ras max　

(1)Fw D C

Without Inner Ring, Inch Series


50.800（2）

190240

50.800（2 ）50.800（2 ）

65.088（2 916）65.088（2 916）

25.400（1 ）31.750（1 1 4）

57.8 57.8

BR 324116BR 324120

1.51.5

57.150（214）

435510

57.150（2 1 4）57.150（2 1 4）

76.200（3 ）76.200（3 ）

38.100（1 1 2）44.450（1 3 4）

69 69

BR 364824BR 364828

1.51.5

63.500（212）

475555

63.500（2 1 2）63.500（2 1 2）

82.550（3 1 4）82.550（3 1 4）

38.100（1 1 2）44.450（1 3 4）

74.3 74.3

BR 405224BR 405228

22

69.850（234）

510600

69.850（2 3 4）69.850（2 3 4）

88.900（3 1 2）88.900（3 1 2）

38.100（1 1 2）44.450（1 3 4）

80.7 80.7

BR 445624BR 445628

22

76.200（3）

555650

76.200（3 ）76.200（3 ）

95.250（3 3 4）95.250（3 3 4）

38.100（1 1 2）44.450（1 3 4）

87 87

BR 486024BR 486028

22

82.550（314）

9901 140

82.550（3 1 4）82.550（3 1 4）

107.950（4 1 4）107.950（4 1 4）

44.450（1 3 4）50.800（2 ）

99.7 99.7

BR 526828BR 526832

22

88.900（312） 1 220 88.900（3

1 2） 114.300（4

1 2） 50.800（2 ） 106.1BR 567232 2

95.250（334） 1 290 95.250（3

3 4） 120.650（4

3 4） 50.800（2 ） 111.4BR 607632 2.5

101.600（4） 1 370 101.600（4 ） 127.000（5 ） 50.800（2 ） 117.8BR 648032 2.5

90 300105 000

98 700114 000

141 000154 000

169 000

94 600110 000

105 000122 000

162 000

176 000

51 00063 200

158 000191 000

189 000228 000

259 000290 000

342 000

174 000210 000

211 000255 000

316 000

368 000

89 400118 000

7 0007 000

5 5005 500

5 0005 000

4 000

6 5006 500

5 5005 500

4 500

4 000

8 0008 000

BR

Shaft dia. 50.800−101.600mm

D Fw

C

Da

ra


D

Notes(1)　　Allowable axial shift amount of inner ring to outer ring 　　 (2)　　Maximum permissible corner radius of the shaft or housing 　　 (3)　　Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remarks1.　The inner ring and the outer ring each have an oil groove and an oil hole. 2.　No grease is prepacked. Perform proper lubrication.

Shaft dia. mm

(inch)

Identification

number

Mass (Ref.)

g


d D C B Fw S(1)

With Inner Ring, Inch Series


9.525（38） 67.5 9.525（ 3

8） 28.575（1

1 8） 19.050（ 3

4） 15.875（ 5 8） 0.319.300BRI 61812

12.700（12）

79.5106

12.700（ 1 2）12.700（ 1 2）

31.750（1 1 4）31.750（1 1 4）

19.050（ 3 4）25.400（1 ）

19.050（ 3 4）19.050（ 3 4）

0.30.5

19.30025.650

BRI 82012BRI 82016

15.875（58）

91122

15.875（ 5 8）15.875（ 5 8）

34.925（1 3 8）34.925（1 3 8）

19.050（ 3 4）25.400（1 ）

22.225（ 7 8）22.225（ 7 8）

0.30.5

19.30025.650

BRI 102212BRI 102216

19.050（34）

102136

19.050（ 3 4）19.050（ 3 4）

38.100（1 1 2）38.100（1 1 2）

19.050（ 3 4）25.400（1 ）

25.400（1 ）25.400（1 ）

0.30.5

19.30025.650

BRI 122412BRI 122416

22.225（78）

152190

22.225（ 7 8）22.225（ 7 8）

41.275（1 5 8）41.275（1 5 8）

25.400（1 ）31.750（1 1 4）

28.575（1 1 8）28.575（1 1 8）

0.50.5

25.65032.000

BRI 142616BRI 142620

25.400（1）

166210

25.400（1 ）25.400（1 ）

44.450（1 3 4）44.450（1 3 4）

25.400（1 ）31.750（1 1 4）

31.750（1 1 4）31.750（1 1 4）

0.50.5

25.65032.000

BRI 162816BRI 162820

28.575（118）

182225

28.575（1 1 8）28.575（1 1 8）

47.625（1 7 8）47.625（1 7 8）

25.400（1 ）31.750（1 1 4）

34.925（1 3 8）34.925（1 3 8）

0.50.5

25.65032.000

BRI 183016BRI 183020

31.750（114）

220275

31.750（1 1 4）31.750（1 1 4）

52.388（2 116）52.388（2 116）

25.400（1 ）31.750（1 1 4）

38.100（1 1 2）38.100（1 1 2）

0.50.5

25.65032.000

BRI 203316BRI 203320

34.925（138）

235295

34.925（1 3 8）34.925（1 3 8）

55.562（2 316）55.562（2 316）

25.400（1 ）31.750（1 1 4）

41.275（1 5 8）41.275（1 5 8）

0.50.5

25.65032.000

BRI 223516BRI 223520

38.100（112）

250315350380

38.100（1 1 2）38.100（1 1 2）38.100（1 1 2）38.100（1 1 2）

58.738（2 516）58.738（2 516）60.325（2 3 8）61.912（2 716）

25.400（1 ）31.750（1 1 4）31.750（1 1 4）31.750（1 1 4）

44.450（1 3 4）44.450（1 3 4）44.450（1 3 4）47.625（1 7 8）

0.50.50.50.5

25.65032.00032.00032.000

BRI 243716BRI 243720BRI 243820BRI 243920

41.275（158）

325410

41.275（1 5 8）41.275（1 5 8）

65.088（2 916）65.088（2 916）

25.400（1 ）31.750（1 1 4）

50.800（2 ）50.800（2 ）

0.50.5

25.65032.000

BRI 264116BRI 264120

Shaft dia. 9.525− 41.275mm


min-1


BRI

(2)


Min. Max.

DaMax.

ras max　

da


C

N


C0

N

14 14.5 24.5 0.6 18 900

21 70027 600

23 00029 100

25 30032 100

34 90043 200

36 00044 600

38 50047 700

43 70054 200

44 80055 600

47 50058 90058 90060 100

51 00063 200

19 700

24 40033 100

27 10036 800

31 90043 300

49 90065 600

53 50070 300

60 00078 900

66 90088 200

70 90093 400

78 200103 000103 000108 000

89 400118 000

25 000 LRB 61012

17.517.5

1818

26.526.5

11

20 00020 000

LRB 81212LRB 81216

2121

21.221.2

29.729.7

11

18 00018 000

LRB 101412LRB 101416

2424

24.424.4

32.932.9

11

16 00016 000

LRB 121612LRB 121616

2727

27.527.5

3636

11

14 00014 000

LRB 141816LRB 141820

30.530.5

30.730.7

39.239.2

11

13 00013 000

LRB 162016LRB 162020

33.533.5

33.933.9

42.442.4

11

11 00011 000

LRB 182216LRB 182220

3737

37.137.1

45.145.1

1.51.5

11 00011 000

LRB 202416LRB 202420

40.240.2

40.240.2

48.348.3

1.51.5

9 5009 500

LRB 222616LRB 222620

43.343.343.343.3

43.443.443.443.4

51.551.553.154.7

1.51.51.51.5

9 0009 0009 0008 500

LRB 242816LRB 242820LRB 242820LRB 243020

4848

4949

57.857.8

1.51.5

8 0008 000

LRB 263216LRB 263220

D d F w

BC

da

ra

ra

Da

S


D


Shaft dia. mm

(inch)


Mass (Ref.)

g


d D C B Fw S(1)

With Inner Ring, Inch Series

Notes(1)　　Allowable axial shift amount of inner ring to outer ring 　　 (2)　　Maximum permissible corner radius of the shaft or housing 　　 (3)　　Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remarks1.　 In bearings with a bearing bore diameter, d, of 57.150 mm or less, the outer ring has an oil groove and an oil hole. In bearings with

a bearing bore diameter, d, of 76.200 mm or less, the inner ring has an oil groove and an oil hole. In others, the inner ring and the outer ring each have an oil groove and two oil holes.

2.　No grease is prepacked. Perform proper lubrication.

44.450（134）

735855

44.450（1 3 4）44.450（1 3 4）

76.200（3 ）76.200（3 ）

38.100（1 1 2）44.450（1 3 4）

57.150（2 1 4）57.150（2 1 4）

11

38.35044.700

BRI 284824BRI 284828

50.800（2）

810945

50.800（2 ）50.800（2 ）

82.550（3 1 4）82.550（3 1 4）

38.100（1 1 2）44.450（1 3 4）

63.500（2 1 2）63.500（2 1 2）

11

38.35044.700

BRI 325224BRI 325228

57.150（214）

8851 040

57.150（2 1 4）57.150（2 1 4）

88.900（3 1 2）88.900（3 1 2）

38.100（1 1 2）44.450（1 3 4）

69.850（2 3 4）69.850（2 3 4）

11

38.35044.700

BRI 365624BRI 365628

63.500（212）

9651 130

63.500（2 1 2）63.500（2 1 2）

95.250（3 3 4）95.250（3 3 4）

38.100（1 1 2）44.450（1 3 4）

76.200（3 ）76.200（3 ）

11

38.35044.700

BRI 406024BRI 406028

69.850（234）

1 5201 740

69.850（2 3 4）69.850（2 3 4）

107.950（4 1 4）107.950（4 1 4）

44.450（1 3 4）50.800（2 ）

82.550（3 1 4）82.550（3 1 4）

1.53

44.70051.050

BRI 446828BRI 446832

76.200（3） 1 860 76.200（3 ） 114.300（4 1 2） 50.800（2 ） 88.900（3 1 2） 351.050BRI 487232

82.550（314） 1 980 82.550（3 1 4） 120.650（4 3 4） 50.800（2 ） 95.250（3 3 4） 351.050BRI 527632

88.900（312） 2 120 88.900（3 1 2） 127.000（5 ） 50.800（2 ） 101.600（4 ） 351.050BRI 568032

Shaft dia. 44.450−88.900mm


C

N


C0

N


BRI

(2)


Min. Max.

DaMax.

ras max　

da

52.552.5

5555

69 69

1.51.5

90 300105 000

94 600 110 000

98 700114 000

105 000122 000

141 000154 000

162 000

169 000

176 000

158 000191 000

174 000210 000

189 000228 000

211 000255 000

259 000290 000

316 000

342 000

368 000

7 0007 000

LRB 283624LRB 283628

5858

6161

74.3 74.3

22

6 5006 500

LRB 324024LRB 324028

6565

6767

80.7 80.7

22

5 5005 500

LRB 364424LRB 364428

7171

7373

87 87

22

5 5005 500

LRB 404824LRB 404828

7777

7979

99.7 99.7

22

5 0005 000

LRB 445228LRB 445232

83.5 86 106.1 2 4 500 LRB 485632

91 93 111.4 2.5 4 000 LRB 526032

97 99 117.8 2.5 4 000 LRB 566432


min-1

D d F w

BC

da

ra

ra

Da

S


D


With Seal, Without Inner Ring



Da

Max. mm


min-1


C

N


C0

N

Notes(1)　　Minimum allowable value of chamfer dimension r 　　 (2)　　Allowable rotational speed applies to grease lubrication.Remarks1.　The outer ring has an oil groove and an oil hole. 2.　 Bearings are provided with prepacked grease. Bearings with a seal on one side are not provided with prepacked grease. Perform

proper lubrication for use.

g D C rs minFw(1)

Shaft dia.

mm


g

With two seals With one seal With one sealWith two seals

14

16

18

20

22

25

28

30

32

35

40

42

45

RNA 4900UU

RNA 4901UU

RNA 49/14UU

RNA 4902UU

RNA 4903UU

RNA 4904UU

RNA 49/22UU

RNA 4905UU

RNA 49/28UU

RNA 4906UU

RNA 49/32UU

RNA 4907UU

RNA 49/38UU

RNA 6901UU

RNA 6902UU

RNA 6903UU

RNA 6904UU

RNA 69/22UU

RNA 6905UU

RNA 69/28UU

RNA 6906UU

RNA 69/32UU

RNA 6907UU

RNA 4900U

RNA 4901U

RNA 49/14U

RNA 4902U

RNA 4903U

RNA 4904U

RNA 49/22U

RNA 4905U

RNA 49/28U

RNA 4906U

RNA 49/32U

RNA 4907U

RNA 49/38U

RNA 6901U

RNA 6902U

RNA 6903U

RNA 6904U

RNA 69/22U

RNA 6905U

RNA 69/28U

RNA 6906U

RNA 69/32U

RNA 6907U

16.3 14

1616

18

2222

2020

2525

2828

3030

3232

3535

4040

45

4242

22

2424

26

3030

2828

3737

3939

4242

4545

4747

5252

58

5555

13

1322

13

1323

1323

1730

1730

1730

1730

1730

2036

20

2036

0.3

0.30.3

0.3

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

0.60.6

0.6

0.60.6

20

2222

24

2828

2626

3535

3737

4040

4343

4545

4848

54

5151

8 080

8 47015 500

9 260

10 30019 800

9 57018 500

18 00033 000

18 30033 800

20 30039 200

21 00038 900

21 50040 100

29 40050 300

31 600

30 10051 600

8 490

9 32020 400

10 800

13 10030 600

11 60027 100

20 50044 600

23 70052 000

25 10058 700

26 80059 100

28 40063 000

44 20088 300

50 400

46 30092 600

14 000

12 00012 000

11 000

8 5008 500

9 5009 500

7 5007 500

7 0007 000

6 5006 500

6 0006 000

5 5005 500

5 0005 000

4 000

4 5004 500

17.9 30

19.7

21.5 37.5

23 40.5

54.5 95.5

55.5 97.5

63 111

75.5 133

71 125

94.5 170

112 200

119


D C rs minFw(1)

RNA49 … UURNA69 … UU(Fw ≦ 35)

RNA49 … URNA69 … U(Fw ≦ 35)

RNA69 … UU RNA69 … U

D Fw

C

r

r

D Fw

C

r

r

D Fw

C

r

r

D Fw

C

r

r

Da


D






Shaft dia.

mm


g


48

50

52

55

58

60

63

65

68

70

72

75

80

85

RNA 4908UU

RNA 6908UU

RNA 6908U

RNA 6909U

RNA 6910U

RNA 6911U

RNA 6912U

RNA 6913U

RNA 6914U

RNA 6915U

−

RNA 6909UU

RNA 6910UU

RNA 6911UU

RNA 6912UU

RNA 6913UU

RNA 6914UU

RNA 6915UU

RNA 49/42UU

RNA 4909UU

RNA 49/48UU

RNA 4910UU

RNA 49/52UU

RNA 4911UU

RNA 49/58UU

RNA 4912UU

RNA 49/62UU

RNA 4913UU

RNA 49/68UU

RNA 4914UU

RNA 4915UU

RNA 4908U

RNA 49/42U

RNA 4909U

RNA 49/48U

RNA 4910U

RNA 49/52U

RNA 4911U

RNA 49/58U

RNA 4912U

RNA 49/62U

RNA 4913U

RNA 49/68U

RNA 4914U

RNA 4915U

4848

50

5252

5858

55

60

6363

65

6868

70

7272

8080

8585

75

6262

65

6868

7272

70

75

8080

82

8585

88

9090

100100

105105

95

2240

22

2240

2240

22

22

2545

25

2545

25

2545

3054

3054

30

0.6 0.6

0.6

0.6 0.6

0.6 0.6

0.6

0.6

1 1

1

1 1

1

1 1

1 1

1 1

1

5858

61

6464

6868

66

71

7575

77

8080

83

8585

9595

100100

90

37 20063 700

38 000

38 90066 600

41 30070 800

39 600

42 100

52 20089 400

53 400

54 50093 400

55 700

56 80097 400

76 900124 000

79 600128 000

73 900

58 400117 000

60 900

63 400127 000

71 100142 000

66 100

73 600

85 700171 000

89 200

92 800186 000

96 300

99 800200 000

143 000281 000

153 000299 000

133 000

4 0004 000

4 000

3 5003 500

3 5003 500

3 500

3 000

3 0003 000

3 000

3 0003 000

2 500

2 5002 500

2 5002 500

2 0002 000

2 500

150270

173

197355

187

177320

200

265470

275

285505

320

325580

465

495910

520960



min-1D C rs minFw

(1)

RNA49 … UU RNA49 … U RNA69 … UU RNA69 … U


Da

Max. mm


C

N


C0

N

D Fw

C

r

r

D Fw

C

r

r

D Fw

C

r

r

D Fw

C

r

r

Da


D






Shaft dia.

mm


g


90

95

100

105

110

115

125

135

150

160

RNA 4916UU

RNA 6916UU

RNA 6916U

RNA 6917U

RNA 6918U

RNA 6919U

RNA 6917UU

RNA 6918UU

RNA 6919UU

RNA 49/82UU

RNA 4917UU

RNA 4918UU

RNA 4919UU

RNA 4920UU

RNA 4922UU

RNA 4924UU

RNA 4926UU

RNA 4928UU

RNA 4916U

RNA 49/82U

RNA 4917U

RNA 4918U

RNA 4919U

RNA 4920U

RNA 4922U

RNA 4924U

RNA 4926U

RNA 4928U

9090

95

100100

110110

105105

115

125

135

150

160

110110

115

120120

130130

125125

140

150

165

180

190

3054

30

3563

3563

3563

40

40

45

50

50

1 1

1

1.1 1.1

1.1 1.1

1.1 1.1

1.1

1.1

1.1

1.5

1.5

5451 010

570

6951 300

7301 360

7601 420

1 280

1 200

1 940

2 360

2 510


D C rs minFw(1)

RNA49 … UU

105 105

110

113.5 113.5

123.5 123.5

118.5 118.5

133.5

143.5

158.5

172

182

80 700132 000

83 200

103 000168 000

109 000177 000

106 000172 000

134 000

140 000

178 000

206 000

214 000

158 000317 000

168 000

225 000448 000

250 000493 000

238 000471 000

297 000

322 000

410 000

511 000

549 000

2 0002 000

2 000

1 9001 900

1 7001 700

1 8001 800

1 700

1 500

1 400

1 300

1 200


min-1

RNA49 … U RNA69 … UU RNA69 … U


Da

Max. mm


C

N


C0

N

D Fw

C

r

r

D Fw

C

r

r

D Fw

C

r

r

D Fw

C

r

r

Da


D




With Seal, With Inner Ring


Shaft dia.

mm


g


10

12

15

17

20

22

25

28

30

32

35

40

NA 4900UU

NA 6901U

NA 6902U

NA 6903U

NA 6904U

NA 69/22U

NA 6905U

NA 69/28U

NA 6906U

NA 69/32U

NA 6907U

NA 6908U

NA 6901UU

NA 6902UU

NA 6903UU

NA 6904UU

NA 69/22UU

NA 6905UU

NA 69/28UU

NA 6906UU

NA 69/32UU

NA 6907UU

NA 6908UU

NA 4901UU

NA 4902UU

NA 4903UU

NA 4904UU

NA 49/22UU

NA 4905UU

NA 49/28UU

NA 4906UU

NA 49/32UU

NA 4907UU

NA 4908UU

NA 4900U

NA 4901U

NA 4902U

NA 4903U

NA 4904U

NA 49/22U

NA 4905U

NA 49/28U

NA 4906U

NA 49/32U

NA 4907U

NA 4908U

10

1212

1515

2020

1717

2222

2525

2828

3030

3232

3535

4040

22

2424

2828

3737

3030

3939

4242

4545

4747

5252

5555

6262

13

1322

1323

1730

1323

1730

1730

1730

1730

2036

2036

2240

14

1423

1424

1831

1424

1831

1831

1831

1831

2137

2137

2341

24.5

27.5 45.5

36 62.5

39.5 68.5

78.5 137

92.5 162

87.5 153

101 177

106 185

167 300

179 320

245 440


D C Bd

NA49 … UUNA69 … UU(d ≦ 30)

12

1414

1717

2222

1919

2424

2727

3030

3232

3636

3939

4444

13

1515

1919

2424

2121

2727

2929

3131

3434

3939

4141

4747

20

2222

2626

3535

2828

3737

4040

4343

4545

4848

5151

5858

8 080

8 47015 500

9 57018 500

18 00033 000

10 30019 800

18 30033 800

20 30039 200

21 00038 900

21 50040 100

29 40050 300

30 10051 600

37 20063 700

14 000

12 00012 000

9 5009 500

7 5007 500

8 5008 500

7 0007 000

6 5006 500

6 0006 000

5 5005 500

5 0005 000

4 5004 500

4 0004 000


min-1

0.3

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

0.60.6

0.60.6

0.60.6

Fw

14

1616

2020

2525

2222

2828

3030

3232

3535

4040

4242

4848

rs min(1)


LRTZ 101414

LRTZ 121614LRTZ 121623

LRTZ 152014LRTZ 152024

LRTZ 172214LRTZ 172224

LRTZ 202518LRTZ 202531

LRTZ 222818LRTZ 222831

LRTZ 253018LRTZ 253031

LRTZ 283218LRTZ 283231

LRTZ 303518LRTZ 303531

LRTZ 324021LRTZ 324037

LRTZ 354221LRTZ 354237

LRTZ 404823LRTZ 404841


Min. Max.

DaMax.

da

NA49 … UNA69 … U(d ≦ 30)

NA69 … UU NA69 … U


C

N


C0

N

8 490

9 32020 400

11 60027 100

13 10030 600

20 50044 600

23 70052 000

25 10058 700

26 80059 100

28 40063 000

44 20088 300

46 30092 600

58 400117 000

D d Fw

CB

r

r

r

r

D Fwd

BC

r

r

r

r

D Fwd

BC

r

r

r

r

BC

r

r

r

r

D d Fw da Da


D






Shaft dia.

mm


g


45

50

55

60

65

70

75

80

85

90

95

100

110

NA 4909UU

NA 6909UU

NA 6909U

NA 6910U

NA 6911U

NA 6912U

NA 6913U

NA 6914U

NA 6915U

NA 6916U

NA 6917U

NA 6918U

NA 6919U

NA 6910UU

NA 6911UU

NA 6912UU

NA 6913UU

NA 6914UU

NA 6915UU

NA 6916UU

NA 6917UU

NA 6918UU

NA 6919UU

NA 4910UU

NA 4911UU

NA 4912UU

NA 4913UU

NA 4914UU

NA 4915UU

NA 4916UU

NA 4917UU

NA 4918UU

NA 4919UU

NA 4920UU

NA 4922UU

NA 4909U

NA 4910U

NA 4911U

NA 4912U

NA 4913U

NA 4914U

NA 4915U

NA 4916U

NA 4917U

NA 4918U

NA 4919U

NA 4920U

NA 4922U

4545

5050

5555

6565

6060

7070

7575

8080

8585

9090

9595

100

110

6868

7272

8080

9090

8585

100100

105105

110110

120120

125125

130130

140

150

2240

2240

2545

2545

2545

3054

3054

3054

3563

3563

3563

40

40

2341

2341

2646

2646

2646

3155

3155

3155

3664

3664

3664

41

41

49 49

54 54

60 60

70 70

65 65

75 75

80 80

85 85

91.5 91.5

96.5 96.5

101.5 101.5

106.5

116.5

51 51

57 57

61 61

70.5 70.5

66 66

78 78

83 83

88 88

98 98

103 103

108 108

113

123

64 64

68 68

75 75

85 85

80 80

95 95

100 100

105 105

113.5 113.5

118.5 118.5

123.5 123.5

133.5

143.5

38 900 66 600

41 30070 800

52 20089 400

56 80097 400

54 50093 400

76 900124 000

79 600128 000

80 700132 000

103 000168 000

106 000172 000

109 000177 000

134 000

140 000

63 400127 000

71 100142 000

85 700171 000

99 800200 000

92 800186 000

143 000281 000

153 000299 000

158 000317 000

225 000448 000

238 000471 000

250 000493 000

297 000

322 000

3 5003 500

3 5003 500

3 0003 000

2 5002 500

3 0003 000

2 5002 500

2 0002 000

2 0002 000

1 9001 900

1 8001 800

1 7001 700

1 700

1 500

290520

295530

415730

445785

475845

8151 480

7701 400

8601 570

1 3002 360

1 3602 480

1 4202 600

1 980

2 150



min-1D C Bd

0.6 0.6

0.6 0.6

1 1

1 1

1 1

1 1

1 1

1 1

1.1 1.1

1.1 1.1

1.1 1.1

1.1

1.1

Fw

5252

5858

6363

7272

6868

8080

8585

9090

100100

105105

110110

115

125

rs min(1)


LRTZ 455223LRTZ 455241

LRTZ 505823LRTZ 505841

LRTZ 556326LRTZ 556346

LRTZ 606826LRTZ 606846

LRTZ 657226LRTZ 657246

LRTZ 708031LRTZ 708055

LRTZ 758531LRTZ 758555

LRTZ 809031LRTZ 809055

LRTZ 8510036LRTZ 8510064

LRTZ 9010536LRTZ 9010564

LRTZ 9511036LRTZ 9511064

LRTZ 10011541

LRTZ 11012541


Min. Max.

DaMax.

da

NA49 … UU NA49 … U NA69 … UU NA69 … U


C

N


C0

N

D d Fw

CB

r

r

r

r

D Fwd

BC

r

r

r

r

D Fwd

BC

r

r

r

r

da Da

BC

r

r

r

r

D d Fw


D





Shaft dia.

mm


g


120

130

140

NA 4924UU

NA 4926UU

NA 4928UU

NA 4924U

NA 4926U

NA 4928U

120

130

140

165

180

190

45

50

50

46

51

51

126.5

138

148

133

148

158

158.5

172

182

178 000

206 000

214 000

410 000

511 000

549 000

1 400

1 300

1 200

2 990

4 080

4 340



min-1D C Bd

1.1

1.5

1.5

Fw

135

150

160

rs min(1)


LRTZ 12013546

LRTZ 13015051

LRTZ 14016051


Min. Max.

DaMax.

da

NA49 … UU NA49 … U


C

N


C0

N


D Fwd

BC

r

r

r

r

da DaD d Fw

CB

r

r

r

r


D


With Seal, Without Inner Ring, Inch Series

Shaft dia. 15.875−50.800mm

Notes(1)　　Maximum permissible corner radius of the housing 　　 (2)　　Allowable rotational speed applies to grease lubrication.Remarks1.　The outer ring has an oil groove and an oil hole. 2.　 Bearings are provided with prepacked grease. 3.　 If one side sealed type are needed, please contact IKO.

54


min-1

Shaft dia.mm

(inch)


With two seals

Mass (Ref.)

g



DaMax.

ras max(1)

Fw D C

15.875（58）19.050（34）22.225（78）25.400（1）28.575

（118）31.750

（114）34.925

（138）38.100

（112）41.275

（158）44.450

（134）47.625

（178）50.800（2）

68

76

83

115

124

134

168

179

193

202

216

15.875（ 5 8）

19.050（ 3 4）

22.225（ 7 8）

25.400（1 ）

28.575（1 1 8）

31.750（1 1 4）

34.925（1 3 8）

38.100（1 1 2）

41.275（1 5 8）

44.450（1 3 4）

47.625（1 7 8）

50.800（2 ）

28.575（1 1 8）

31.750（1 1 4）

34.925（1 3 8）

38.100（1 1 2）

41.275（1 5 8）

44.450（1 3 4）

47.625（1 7 8）

52.388（2 116）

55.562（2 316）

58.738（2 516）

61.912（2 716）

65.088（2 916）

25.400（1 ）

25.400（1 ）

25.400（1 ）

25.400（1 ）

31.750（1 1 4）

31.750（1 1 4）

31.750（1 1 4）

31.750（1 1 4）

31.750（1 1 4）

31.750（1 1 4）

31.750（1 1 4）

31.750（1 1 4）

24.5

26.5

29.7

32.9

36.0

39.2

42.4

45.1

48.3

51.5

54.7

57.8

BR 101816 UU

BR 122016 UU

BR 142216 UU

BR 162416 UU

BR 182620 UU

BR 202820 UU

BR 223020 UU

BR 243320 UU

BR 263520 UU

BR 283720 UU

BR 303920 UU

BR 324120 UU

0.6

1.0

1.0

1.0

1.0

1.0

1.0

1.5

1.5

1.5

1.5

1.5

18 300

20 700

21 600

23 600

34 900

36 000

38 500

43 700

44 800

47 500

48 500

51 000

20 000

24 400

26 900

31 300

49 900

53 500

60 000

66 900

70 900

78 200

82 100

89 400 4 000

12 000

10 000

9 000

8 000

7 000

6 500

5 500

5 500

4 500

4 500

4 000


C

N


C0

N

BR … UU

C

D Fw Da

ra


D


With Seal, Without Inner Ring, Inch Series

Shaft dia. 57.150−95.250mm

Notes(1)　　Maximum permissible corner radius of the housing 　　 (2)　　Allowable rotational speed applies to grease lubrication.Remarks1.　The outer ring has an oil groove and an oil hole. 2.　 Bearings are provided with prepacked grease. 3.　If one side sealed type are needed, please contact IKO.

459


min-1

Shaft dia.mm

(inch)


With two seals

Mass (Ref.)

g



DaMax.

ras max(1)

Fw D C

57.150（214）63.500

（212）69.850

（234）76.200（3）82.550

（314）88.900

（312）95.250

（334）

499

540

585

891

1 098

1 161

57.150（2 1 4）

63.500（2 1 2）

69.850（2 3 4）

76.200（3 ）

82.550（3 1 4）

88.900（3 1 2）

95.250（3 3 4）

76.200（3 ）

82.550（3 1 4）

88.900（3 1 2）

95.250（3 3 4）

107.950（4 1 4）

114.300（4 1 2）

120.650（4 3 4）

44.450（1 3 4）

44.450（1 3 4）

44.450（1 3 4）

44.450（1 3 4）

44.450（1 3 4）

50.800（2 ）

50.800（2 ）

69.0

74.3

80.7

87.0

99.7

106.1

111.4

BR 364828 UU

BR 405228 UU

BR 445628 UU

BR 486028 UU

BR 526828 UU

BR 567232 UU

BR 607632 UU

1.5

2.0

2.0

2.0

2.0

2.0

2.5

90 300

94 600

98 700

105 000

109 000

142 000

148 000

158 000

174 000

189 000

211 000

227 000

265 000

287 000

3 500

3 000

2 500

2 500

2 500

2 000

2 000


C

N


C0

N

BR … UU

C

D Fw Da

ra


D


With Seal, With Inner Ring, Inch Series

Shaft dia. 9.525− 44.450mm


min-1


(1)

Min. Max.

DaMax.

ras maxda


C

N


C0

N

Notes(1)　　Maximum permissible corner radius of the shaft or housing 　　 (2)　　Allowable rotational speed applies to grease lubrication.Remarks1.　The inner ring and the outer ring each have an oil groove and an oil hole. 2.　 Bearings are provided with prepacked grease. 3.　If one side sealed type are needed, please contact IKO.

Shaft dia.mm

(inch)


g


d D C B Fw

9.525（38）12.700（12）15.875（58）19.050（34）22.225（78）25.400（1）28.575

（118）31.750

（114）34.925

（138）38.100

（112）41.275

（158）44.450

（134）

BRI 61816 UU

BRI 82016 UU

BRI 102216 UU

BRI 122416 UU

BRI 142620 UU

BRI 162820 UU

BRI 183020 UU

BRI 203320 UU

BRI 223520 UU

BRI 243720 UUBRI 243920 UU

BRI 264120 UU

BRI 284828 UU

79

99

113.5

127

177

196

211

254

275

293362

386

804

9.525（ 3 8） 28.575（1 1 8）

12.700（ 1 2） 31.750（1 1 4）

15.875（ 5 8） 34.925（1 3 8）

19.050（ 3 4） 38.100（1 1 2）

22.225（ 7 8） 41.275（1 5 8）

25.400（1 ） 44.450（1 3 4）

28.575（1 1 8） 47.625（1 7 8）

31.750（1 1 4） 52.388（2 116）

34.925（1 3 8） 55.562（2 316）

38.100（1 1 2）38.100（1 1 2）

58.738（2 516）61.912（2 716）

41.275（1 5 8） 65.088（2 916）

44.450（1 34） 76.200（3 ）

25.400（1 ）

25.400（1 ）

25.400（1 ）

25.400（1 ）

31.750（1 1 4）

31.750（1 1 4）

31.750（1 1 4）

31.750（1 1 4）

31.750（1 1 4）

31.750（1 1 4）31.750（1 1 4）

31.750（1 1 4）

44.450（1 3 4）

25.650

25.650

25.650

25.650

32.000

32.000

32.000

32.000

32.000

32.00032.000

32.000

44.700

15.875（ 5 8）

19.050（ 3 4）

22.225（ 7 8）

25.400（1 ）

28.575（1 1 8）

31.750（1 1 4）

34.925（1 3 8）

38.100（1 1 2）

41.275（1 5 8）

44.450（1 3 4）47.625（1 7 8）

50.800（2 ）

57.150（2 1 4）

With two seals

14

17.5

21

24

27

30.5

33.5

37

40.2

43.343.3

48

52.5

14.5

18

21.2

24.4

27.5

30.7

33.9

37.1

40.2

43.445

49

55

24.5

26.5

29.7

32.9

36.0

39.2

42.4

45.1

48.3

51.554.7

57.8

69.0

0.6

0.6

0.6

0.6

0.6

0.6

0.6

0.6

0.6

0.61

1

1.5

18 300

20 700

21 600

23 600

34 900

36 000

38 500

43 700

44 800

47 50048 500

51 000

90 300

20 000

24 400

26 900

31 300

49 900

53 500

60 000

66 900

70 900

78 20082 100

89 400

158 000

12 000

10 000

9 000

8 000

7 000

6 500

5 500

5 500

4 500

4 5004 000

4 000

3 500

LRBZ 61016 B

LRBZ 81216 B

LRBZ 101416 B

LRBZ 121616 B

LRBZ 141820 B

LRBZ 162020 B

LRBZ 182220 B

LRBZ 202420 B

LRBZ 222620 B

LRBZ 242820 BLRBZ 243020 B

LRBZ 263220 B

LRBZ 283628 B

BRI … UU


BC

D d Fw Da

ra

ra

da


D


With Seal, With Inner Ring, Inch Series

Shaft dia. 50.800−82.550mm


min-1


(1)

Standard mounting dimensionsmm

Min. Max.

DaMax.

ras maxda


C

N


C0

N

Notes(1)　　Maximum permissible corner radius of the shaft or housing 　　 (2)　　Allowable rotational speed applies to grease lubrication.Remarks1.　The inner ring and the outer ring each have an oil groove and an oil hole. 2.　 Bearings are provided with prepacked grease. 3.　If one side sealed type are needed, please contact IKO.

Shaft dia.mm

(inch)


g


d D C B Fw

50.800（2）57.150

（214）63.500

（212）69.850

（234）76.200（3）82.550

（314）

BRI 325228 UU

BRI 365628 UU

BRI 406028 UU

BRI 446828 UU

BRI 487232 UU

BRI 527632 UU

889

980

1 065

1 421

1 738

1 851

50.800（2 ） 82.550（3 1 4）

57.150（2 1 4） 88.900（3 1 2）

63.500（2 1 2） 95.250（3 3 4）

69.850（2 3 4） 107.950（4 1 4）

76.200（3 ） 114.300（4 1 2）

82.550（3 1 4） 120.650（4 3 4）

44.450（1 3 4）

44.450（1 3 4）

44.450（1 3 4）

44.450（1 3 4）

50.800（2 ）

50.800（2 ）

44.700

44.700

44.700

44.700

51.050

51.050

63.500（2 1 2）

69.850（2 3 4）

76.200（3 ）

82.550（3 1 4）

88.900（3 1 2）

95.250（3 3 4）

With two seals

58

65

71

77

83.5

91

61

67

73

79

86

93

74.3

80.7

87.0

99.7

106.1

111.4

1.5

1.5

1.5

1.5

1.5

1.5

94 600

98 700

105 000

109 000

142 000

148 000

174 000

189 000

211 000

227 000

265 000

287 000

3 000

2 500

2 500

2 500

2 000

2 000

LRBZ 324028 B

LRBZ 364428 B

LRBZ 404828 B

LRBZ 445228 B

LRBZ 485632 B

LRBZ 526032 B

BRI … UU

BC

D d Fw Da

ra

ra

da

D

D75 D76

Structure and featuresC-Lube Machined Type Needle Roller Bearing is a bearing that is lubricated with a newly developed thermosetting solid-type lubricant. A large amount of lubricating oil and fine particles of ultra high molecular weight polyolefin resin are solidified by heat treatment to fill the inner space of the bearing. As the bearing rotates, the lubricating oil oozes out onto the raceway in proper quantities, maintaining the lubrication performance for a long period of time.C-Lube Machined Type Needle Roller Bearings are bearings with a low sectional height and large load ratings. The outer ring has high rigidity and can easily be used even for light alloy housings.

FitThe recommended fits for C-Lube Machined Type Needle Roller Bearings are shown in Tables 21 to 23 on pages A41 and A42.

Allowable Rotational SpeedThe allowable rotational speed of C-Lube Machined Type Needle Roller Bearing is affected by mounting and operating conditions. The reference dmn value (1) is 20,000.

Note(1)　dmn value = (Bore diameter of bearing [mm] + Outside diameter of bearing [mm])/2 x rotational speed [min-1]

AccuracyC-Lube Machined Type Needle Roller Bearings are manufactured based on JIS (See page A31.). The tolerances for the smallest single roller set bore diam-eter of bearings without inner ring are based on Table 14 on page A33.

TypeC-Lube Machined Type Needle Roller Bearing is available in type shown in Table 1.

Identification numberThe identification number of C-Lube Machined Type Needle Roller Bearing consists of model code, dimen-sions and classification symbol. Example is shown below.

Mounting

Precaution for Use

LubricationAs the internal space of C-Lube Machined Type Needle Roller Bearing is filled with thermosetting solid-type lubricant C-Lube, regreasing is not possible due to the structure.

Oil holeTable 2 shows the number of oil holes on the outer ring.

TAF 12 1219 P6 /SGModel code Dimensions Model code

Type of bearing

（12mm）

（19mm）


Bearing width

Nominal outside diameter




TAF…/SG(1)

Structure of C-Lube Machined Type Needle Roller Bearing

Cage

Needle roller

Outer ring

Table 2 Number of oil holes of outer ring

Nominal roller set bore diameterFwmm

Number of hole holes of outer ring

Fw≦26 26＜Fw

0

1Remark　 If there is oil hole on the outer ring, care must be

exercised not to let oil holes within the load range.

Table 1 Type of bearing

Type

Series

Metric series For light duty TAF･･･/SG

Needle bearing with cage

Without inner ring

1 Mounting dimensions for C-Lube Machined Type Needle Roller Bearings are shown in the table of dimensions.

2 When mounting, pay special attention to avoid locating the oil hole within the loading zone. This may lead to a short bearing life.

1 Do not wash C-Lube Machined Type Needle Roller Bearing with organic solvent and/or white kerosene, which have the ability of removing fat nor leave them in contact with the above agents.

2 To ensure normal rotation of the C-Lube Machined Type Needle Roller Bearing, apply a load of 1% or over of the dynamic load rating at use.

3 The operating temperature range is -15〜+80˚C. For continuous operation, the recommended oper-ating temperature is +60˚C or less.

4 When using two or more C-Lube Machined Type Needle Roller Bearings adjacent to each other on the same shaft, it is necessary to obtain an even load distribution. On request, a set of bearings is available, in which bearings are matched to obtain an even load distribution.

Further, C-Lube Machined Type Needle Roller Bearing for food machinery is also available. If need-ed, please contact IKO.

Note(1)　 Thermosetting solid-type lubricant fills inner space of the bearing.


D

Shaft dia. 10−45mm

C-LUBE MACHINED TYPE NEEDLE ROLLER BEARINGS

Without Inner Ring

Shaft dia.


Fw D C rs min(1)

TAF … /SGFw＞26

TAF … /SGFw≦26


Da

Max.mm


C

N


C0

N

TAF 101712/SGTAF 101716/SG

TAF 121912/SGTAF 121916/SG

TAF 142216/SGTAF 142220/SG

TAF 152316/SGTAF 152320/SG

TAF 162416/SGTAF 162420/SG

TAF 182616/SGTAF 182620/SG

TAF 192716/SGTAF 192720/SG

TAF 202816/SGTAF 202820/SG

TAF 212916/SGTAF 212920/SG

TAF 223016/SGTAF 223020/SG

TAF 243216/SGTAF 243220/SG

TAF 253316/SGTAF 253320/SG

1114.7

12.516.8

2227.5

23.529

2430

26.533

2835.5

28.537

3037.5

3139

3342

3543.5

10

12

14

15

16

18

19

21

22

24

25

20

Note(1)　　 Minimum allowable value of chamfer dimension r.Remarks1.　 Models with a nominal roller set bore diameter Fw of 26mm or less are provided without oil holes. other models are provided with

one oil hole and oil groove. 2.　This bearing can not be re-lubricated as thermosetting solid-type lubricant C-Lube fills inner space of the bearing.

Mass (Ref.)

g


1010

1212

1414

1515

1616

1818

1919

2020

2121

2222

2424

2525

1717

1919

2222

2323

2424

2626

2727

2828

2929

3030

3232

3333

1216

1216

1620

1620

1620

1620

1620

1620

1620

1620

1620

1620

0.20.2

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

15.415.4

1717

2020

2121

2222

2424

2525

2626

2727

2828

3030

3131

5 8808 230

6 6109 250

11 70014 800

12 30015 600

12 30015 500

13 40017 000

14 00017 700

13 90017 600

14 40018 200

14 90018 900

15 30019 400

15 80020 000

5 9709 190

7 26011 200

13 70018 600

14 90020 200

15 10020 400

17 50023 600

18 70025 300

18 80025 400

20 00027 100

21 20028 700

22 50030 500

23 70032 100

Shaft dia.


Fw D C rs min(1)


Da

Max.mm


C

N


C0

N

TAF 293820/SGTAF 293830/SG

TAF 304020/SGTAF 304030/SG

TAF 354520/SGTAF 354530/SG

TAF 405020/SGTAF 405030/SG

TAF 455520/SGTAF 455530/SG

59 88

67101

76.5116.5

86130

95.5144

29

30

35

40

45

Mass (Ref.)

g


2929

3030

3535

4040

4545

3838

4040

4545

5050

5555

2030

2030

2030

2030

2030

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

3636

3838

4343

4848

5353

21 60030 900

25 10036 000

26 90038 600

29 40042 300

31 00044 600

37 20059 100

40 10063 900

46 20073 600

54 10086 200

60 20095 800

C

r

r

D Fw

C

r

r

D Fw Da

D79 D80

DNeedle Roller Bearings with Separable Cage - Without Inner Ring

Needle Roller Bearings with Separable Cage - With Inner Ring

Structure and FeaturesIn IKO Needle Roller Bearings with Separable Cage, the inner ring, outer ring and IKO Needle Roller Cage are combined, and they can be separated easily. This type has a simple structure with high accuracy. In addition, the radial clearance can be freely chosen by selecting and combining these component parts. As Needle Roller Cages are used, these bearings have excellent rotational performance.These bearings are most suitable for mass-production high accuracy products such as machine tools, textile machinery, and printing machines.

Structures of Needle Roller Bearings with Separable Cage

Outer ring

Needle roller cage

Outer ring

Needle roller cage

Outer ring

Inner ring

Needle roller cage

Outer ring

Inner ring

Needle roller cage


D

RNAF 7 14 8

NAFW 30 2645 C2 P5

N

（45mm）

（30mm）

（7mm）

（14mm）

（8mm）


Example 1

Example 2

Model code DimensionsSupplemental

code

Model code DimensionsSupplemental

code

Type of bearing

Cage made of synthetic resin

Classificationsymbol


Clearance symbol (C2 clearance)

Bearing width

Type of bearing




Bearing width

Nominal bore diameter

（26mm）

TypesNeedle Roller Bearings with Separable Cage are available in the types shown in Table 1.

The identification number of Needle Roller Bearings with Separable Cage consists of a model code, dimensions, any supplemental codes and a classifica-tion symbol. The arrangement examples are as fol-lows.

Identification NumberMounting examples of Needle Roller Bearings with Separable Cage are shown in Fig.1.When mount ing Needle Rol ler Bear ings wi th Separable Cage, it is necessary to locate the needle cage axially. The needle cage is guided by shoulders of the shaft and housing or by side plates, and their guide surfaces must be heat-treated and finished by grinding at right angles to the shaft central axis.Dimensions related to mounting are shown in the table of dimensions.

Mounting

LubricationNeedle Roller Bearings with Separable Cage are not provided with prepacked grease. Perform proper lubrication for use. Using them without lubrication will increase the wear of the rolling contact surfaces and shorten their lives.

Oil HoleThe double-row type outer rings have both an oil hole and an oil groove, but the single-row type outer rings do not. When outer rings with an oil hole are required, attach "-OH" before the clearance symbol in the identification number, and when outer rings with both an oil hole and an oil groove are required, attach "-OG" to the same position.Example: NAF 203517 - OH C2 P6When outer rings with multiple oil holes or inner rings with oil hole(s) are required, please contact IKO.

FitRecommended fits for Needle Roller Bearings with Separable Cage are shown in Tables 21 to 23 on pages A41 and A42.

Operating temperature rangeFor synthetic resin cages, "N" is added at the end of the identification number. The operating temperature range for Needle Roller Bearings with Separable Cage is -20〜 +120˚C. However, the maximum allow-able temperature for synthetic resin cages is +110˚C, and when they are continuously operated, it is +100˚C.

Accuracy

Needle Roller Bearings with Separable Cage - Without Inner RingThe single-row as well as the double-row types are available with the same sectional height, and either of them can be selected according to load conditions. As shown in the section, "Design of shaft and hous-ing" on page A44, any desired radial internal clear-ance can be selected by combining a shaft which is heat-treated and finished by grinding.

Needle Roller Bearings with Separable Cage - With Inner RingThese bearings are made to the CN clearance shown in Table 19 on page A37. When especially high accu-racy is required, it is possible to supply semi-finished inner rings which have a finishing allowance on their outside diameter so that they can be ground after being press-fitted to shafts.

Needle Roller Bearings with Separable Cage are manufactured to the accuracy based on JIS (See page A31.). Tolerances for the smallest single roller set bore diameter of bearings without inner ring are based on Table 14 on page A33.



Type

Model code RNAFW NAFWRNAF NAF

Double-row

Without inner ring With inner ring

Single-row


ClearanceRadial internal clearances of Needle Roller Bearings with Separable Cage are made to the CN clearance shown in Table 18 on page A37.


D

NEEDLE ROLLER BEARINGS WITH SEPARABLE CAGE

Without Inner Ring

Shaftdia.

mm

Mass (Ref.)

g


C

N


C0

N



Fw D Cdb Da

Max.

Dbrs min(1)


Notes(1)　　Minimum allowable value of chamfer dimension r 　　 (2) 　 Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 50% of this value is allowable.Remarks1. The character "N" at the end of the identification number indicates that a synthetic resin cage is incorporated. 2. RNAF has no oil hole. RNAFW is provided with an oil groove and an oil hole on the outer ring. 3. No grease is prepacked. Perform proper lubrication.

RNAF RNAFW

5 RNAF 5108N 5 10 8 0.2 6.7 8.4 5.4 2 420 1 950 2.8

6 RNAF 6138N 6 13 8 0.3 8.4 11 6.4 2 700 2 320 5.5

7 RNAF 7148N 7 14 8 0.3 9.4 12 7.4 2 960 2 690 6.1

8 RNAF 81510RNAFW 81620

88

1516

1020

0.30.3

10.410.8

1314

8.48.4

3 6306 220

3 6007 200

8.220.5

10 RNAF 101710RNAF 102012

1010

1720

1012

0.30.3

12.413.5

1518

10.410.4

4 1605 940

4 5506 000

9.618.7

12 RNAF 122212 12 22 12 0.3 15.5 20 12.4 9 030 8 46019.5

14RNAF 142213RNAFW 142220RNAF 142612

141414

222226

132012

0.30.30.3

17.617.619.4

202024

14.614.614.6

7 86010 8009 790

9 41014 2009 680

18.728.529

15 RNAF 152313RNAFW 152320

1515

2323

1320

0.30.3

18.618.6

2121

15.615.6

8 25011 400

10 20015 400

19.730.5

16RNAF 162413RNAFW 162420RNAF 162812

161616

242428

132012

0.30.30.3

19.619.621.4

222226

16.616.616.6

8 62011 90010 500

11 00016 70010 900

213231.5

17 RNAF 172513RNAFW 172520

1717

2525

1320

0.30.3

20.620.6

2323

17.617.6

8 98012 400

11 80017 900

2233.5

18RNAF 182613RNAFW 182620RNAF 183012RNAFW 183024

18181818

26263030

13201224

0.30.30.30.3

21.621.623.423.4

24242828

18.618.618.618.6

9 33012 90011 80020 200

12 70019 10013 10026 200

233534.569.5


min-1

85 000

75 000

65 000

60 00060 000

50 00050 000

40 000

35 00035 00035 000

35 00035 000

30 00030 00030 000

30 00030 000

30 00030 00030 00030 000


D Fw

C

r

r

C

r

r

D Fw Da db Db


D


RNAF RNAFW

Without Inner Ring

Shaftdia.

mm

Mass (Ref.)

g


C

N


C0

N



Fw D Cdb Da

Max.

Dbrs min(1)


Notes(1)　　Minimum allowable value of chamfer dimension r 　　 (2) 　 Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 50% of this value is allowable.Remarks1. RNAF has no oil hole. RNAFW is provided with an oil groove and an oil hole on the outer ring. 2. No grease is prepacked. Perform proper lubrication.


min-1

25 00025 00025 00025 000

25 00025 00025 00025 000

20 00020 00020 00020 000

18 00018 000

17 00017 00017 00017 000

14 00014 00014 00014 000

12 00012 00012 00012 000


20202020

28283232

13261224

0.30.30.30.3

23.623.625.425.4

26263030

20.620.620.620.6

9 59016 40012 40021 200

13 50027 10014 30028 600

25 49.5 37.5 75


22222222

30303535

13261632

0.30.30.30.3

25.625.627.827.8

28283333

22.622.622.622.6

10 20017 50017 60030 200

15 20030 30020 90041 800

27 53.5 58.5117


25252525

35353737

17261632

0.30.30.30.3

29.529.530.430.4

33333535

25.625.625.625.6

17 30022 40019 40033 200

26 60037 20024 50049 000

51 78 57114

28 RNAF 284016RNAFW 284032

2828

4040

1632

0.30.3

33.433.4

3838

28.628.6

20 10034 400

26 50053 000

62.5125


30303030

40404242

17261632

0.30.30.30.3

34.534.535.435.4

38384040

30.630.630.630.6

18 70024 20020 80035 700

31 10043 40028 40056 800

59 90.5 66132


35353535

45454747

17261632

0.30.30.30.3

39.539.540.440.4

43434545

35.635.635.635.6

20 50026 60023 10039 500

36 90051 50033 90067 800

67.5103 75.5151

40

RNAF 405017RNAFW 405034RNAF 405520RNAFW 405540

40404040

50505555

17342040

0.30.30.30.3

43.543.545.245.2

48485353

40.840.840.840.8

22 20038 00031 40053 900

42 70085 40048 00096 000

76152140280


D Fw

C

r

r

C

r

r

D Fw Da db Db


D


Without Inner Ring

Shaftdia.

mm

Mass (Ref.)

g


C

N


C0

N



Fw D Cdb Da

Max.

Dbrs min(1)


Notes(1)　　Minimum allowable value of chamfer dimension r 　　 (2) 　 Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 50% of this value is allowable.Remarks1. RNAF has no oil hole. RNAFW is provided with an oil groove and an oil hole on the outer ring. 2. No grease is prepacked. Perform proper lubrication.


45454545

55556262

17342040

0.30.30.30.3

48.5 48.5 50.9 50.9

53536060

45.8 45.8 45.8 45.8

23 30039 90033 20056 900

47 10094 20053 300

107 000

83.5 167 184 370


50505050

62626565

20402040

0.30.30.30.6

54.2 54.2 55.2 55.2

60606361

50.8 50.8 50.8 50.8

27 10046 40035 90061 500

59 300119 00061 100

122 000

138 275 170 340


55555555

68687272

20402040

0.30.311

59.5 59.5 60.9 60.9

66666767

55.8 55.8 55.8 55.8

28 60049 00037 40064 100

66 000132 00066 400

133 000

167 335 220 440

60 RNAF 607820RNAFW 607840

6060

7878

2040

11

66.3 66.3

7373

60.8 60.8

38 90066 700

71 700143 000

255 510

65 RNAF 658530RNAFW 658560

6565

8585

3060

1.51.5

72 72

7777

66 66

59 300102 000

127 000255 000

470 945

70 RNAF 709030RNAFW 709060

7070

9090

3060

1.51.5

77 77

8282

71 71

61 200105 000

136 000272 000

5001 000

75 RNAF 759530RNAFW 759560

7575

9595

3060

1.51.5

82 82

8787

76 76

63 100108 000

144 000289 000

5301 060

80 RNAF 8010030RNAFW 8010060

8080

100100

3060

1.51.5

87 87

9292

81 81

65 000111 000

153 000306 000

5601 120

85 RNAF 8510530 85 105 30 1.5 92 97 86 66 600 161 000 590

90 RNAF 9011030 90 110 30 1.5 97 102 91 69 600 174 000 625

95100

RNAF 9511530RNAF 10012030

95

100

115

120

30

30

1.5

1.5

102

107

107

112

96

101

70 900

72 500

182 000

191 000

655

685


RNAF RNAFW


min-1

11 00011 00011 00011 000

10 00010 00010 00010 000

9 0009 0009 0009 000

8 5008 500

7 5007 500

7 0007 000

6 5006 500

6 0006 000

6 000

5 500

5 500

4 500

D Fw

C

r

r

C

r

r

D Fw Da db Db


D


With Inner Ring

Shaftdia.

mm

Mass (Ref.)

g



d D C Fwdb Da

Max.

Dbrs min(1)


Notes(1)　　Minimum allowable value of chamfer dimension r 　　 (2) 　 Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 50% of this value is allowable.Remarks1. NAF has no oil hole. NAFW is provided with an oil groove and an oil hole on the outer ring. 2. No grease is prepacked. Perform proper lubrication.

6 NAF 61710 6 17 10 0.3 10 8 9.712.4 15 10.4 13.5

7 NAF 72012 7 20 12 0.3 10 9 9.713.5 18 10.4 22.5

9 NAF 92212 9 22 12 0.3 12 11 11.515.5 20 12.4 24

10NAF 102213NAFW 102220NAF 102612

101010

222226

132012

0.30.30.3

141414

121212

131313

17.617.619.4

202024

14.614.614.6

26 40 36

12NAF 122413NAFW 122420NAF 122812

121212

242428

132012

0.30.30.3

161616

141414

151515

19.619.621.4

222226

16.616.616.6

29.5 45.5 40

15NAF 152813NAFW 152826NAF 153212

151515

282832

132612

0.30.30.3

202020

171717

191919

23.623.625.4

262630

20.620.620.6

38.5 77.5 50.5

17NAF 173013NAFW 173026NAF 173516NAFW 173532

17171717

30303535

13261632

0.30.30.30.3

22222222

19191919

21212121

25.625.627.827.8

28283333

22.622.622.622.6

42.5 84.5 77.5155

20NAF 203517NAFW 203526NAF 203716NAFW 203732

20202020

35353737

17261632

0.30.30.30.3

25252525

22222222

24242424

29.529.530.430.4

33333535

25.625.625.625.6

74114 79158

25

NAF 254017NAFW 254026NAF 254216NAFW 254232

25252525

40404242

17261632

0.30.30.30.3

30303030

27272727

29292929

34.534.535.435.4

38384040

30.630.630.630.6

87.5135 94186

Min. Max.

da


NAF NAFW


C

N


C0

N


min-1

4 160 4 550 50 000 LRT 61010

5 940 6 000 50 000 LRT 71012-1

9 030 8 460 40 000 LRT 91212

7 86010 8009 790

9 41014 2009 680

35 00035 00035 000

LRT 101413LRT 101420LRT 101412

8 62011 90010 500

11 00016 70010 900

30 00030 00030 000

LRT 121613LRT 121620LRT 121612

9 59016 40012 400

13 50027 10014 300

25 00025 00025 000

LRT 152013LRT 152026LRT 152012

10 20017 50017 60030 200

15 20030 30020 90041 800

25 00025 00025 00025 000

LRT 172213LRT 172226LRT 172216LRT 172232

17 30022 40019 40033 200

26 60037 20024 50049 000

20 00020 00020 00020 000

LRT 202517LRT 202526LRT 202516LRT 202532

18 70024 20020 80035 700

31 10043 40028 40056 800

17 00017 00017 00017 000

LRT 253017LRT 253026LRT 253016LRT 253032

Assembledinner ring

Da

db Db daD Fwd

C

r

r

r

r

D d Fw

C

r

r

r

r


D



With Inner Ring

Shaftdia.

mm

Mass (Ref.)

g



d D C Fwdb Da

Max.

Dbrs min(1)



30NAF 304517NAFW 304526NAF 304716NAFW 304732

30303030

45454747

17261632

0.30.30.30.3

35353535

32323232

34343434

39.539.540.440.4

43434545

35.635.635.635.6

101155107215


C

N


C0

N


min-1

20 50026 60023 10039 500

36 90051 50033 90067 800

14 00014 00014 00014 000

LRT 303517LRT 303526LRT 303516LRT 303532

35NAF 355017NAFW 355034NAF 355520NAFW 355540

35353535

50505555

17342040

0.30.30.30.3

40404040

37373737

39393939

43.543.545.245.2

48485353

40.840.840.840.8

115230186375

22 20038 00031 40053 900

42 70085 40048 00096 000

12 00012 00012 00012 000

LRT 354017LRT 354034LRT 354020LRT 354040

40NAF 405517NAFW 405534NAF 406220NAFW 406240

40404040

55556262

17342040

0.30.30.30.3

45454545

42424242

44444444

48.548.550.950.9

53536060

45.845.845.845.8

128255235475

23 30039 90033 20056 900

47 10094 20053 300

107 000

11 00011 00011 00011 000

LRT 404517LRT 404534LRT 404520LRT 404540

45NAF 456220NAFW 456240NAF 457220NAFW 457240

45454545

62627272

20402040

0.30.311

50505555

47475050

49495454

54.254.260.960.9

60606767

50.850.855.855.8

196390340685

27 10046 40037 40064 100

59 300119 00066 400

133 000

10 00010 0009 0009 000

LRT 455020LRT 455040LRT 455520LRT 455540

50NAF 506820NAFW 506840NAF 507820NAFW 507840

50505050

68687878

20402040

0.30.311

55556060

52525555

54545959

59.559.566.366.3

66667373

55.855.860.860.8

230465390775

28 60049 00038 90066 700

66 000132 00071 700

143 000

9 0009 0008 5008 500

LRT 505520LRT 505540LRT 506020LRT 506040

55 NAF 558530NAFW 558560

5555

8585

3060

1.51.5

6565

6363

63.563.5

7272

7777

6666

6901 380

59 300102 000

127 000255 000

7 5007 500

LRT 556530LRT 556560

60 NAF 609030NAFW 609060

6060

9090

3060

1.51.5

7070

6868

68.568.5

7777

8282

7171

7401 480

61 200105 000

136 000272 000

7 0007 000

LRT 607030LRT 607060

65 NAF 659530NAFW 659560

6565

9595

3060

1.51.5

7575

7373

73.573.5

8282

8787

7676

7901 580

63 100108 000

144 000289 000

6 5006 500

LRT 657530LRT 657560

Assembledinner ring

NAF NAFW

Min. Max.

da

Da

db Db daD Fwd

C

r

r

r

r

D d Fw

C

r

r

r

r


D


With Inner Ring

Shaftdia.

mm

Mass (Ref.)

g



d D C Fwdb Da

Max.

Dbrs min(1)



70 NAF 7010030NAFW 7010060

7070

100100

3060

1.51.5

8080

7878

78.578.5

8787

9292

8181

8351 680


C

N


C0

N


min-1

65 000111 000

153 000306 000

6 0006 000

LRT 708030-1LRT 708060

75 NAF 7510530 75 105 30 1.5 85 83 83.592 97 86885 66 600 161 000 6 000 LRT 758530-1

80 NAF 8011030 80 110 30 1.5 90 88 88.597 102 91935 69 600 174 000 5 500 LRT 809030-1

85 NAF 8511530 85 115 30 1.5 95 93 93.5102 107 96985 70 900 182 000 5 500 LRT 859530

90 NAF 9012030 90 120 30 1.5 100 98 98.5107 112 1011 040 72 500 191 000 4 500 LRT 9010030

Assembledinner ring

NAF NAFW

Min. Max.

da


Da

db Db daD Fwd

C

r

r

r

r

D d Fw

C

r

r

r

r

E

E1 E2

Caged Roller Bearings

Full Complement Roller Bearings


IKO Roller Bearings in which rollers are incorporated in two rows are non-separable heavy-duty bearings. They can withstand not only radial loads but axial loads as well, which are supported at the contacts between the shoulders of inner and outer rings and the end faces of rollers. Therefore, they are most suitable for use at the fixing side of a shaft. Like nee-dle roller bearings, they are also compact.Roller bearings include the caged type, full comple-ment type and the type for sheaves, and any bearings suitable for the operating conditions can be selected. In particular, these bearings are used for heavy-duty machines such as construction machinery, and indus-trial machinery.

Structures of Roller Bearings

Outer ring

Roller

Stepped spring

Side plate for inner ring



Inner ring

Cage

Outer ring

Roller

Inner ring

Seal

Outer ring

Roller

Inner ring

Shield

Stop ring

Outer ring

Roller

Stepped spring

Inner ring


E

1N=0.102kgf=0.2248lbs.1mm=0.03937inchE3 E4

NAG 49 10 UU P6

NAS 50 10 ZZNR


Example 1

Example 2

Model code

Model code

Dimensions

Dimensions

Supplemental code

Supplemental code


Type of bearing

Type of bearing

Shield symbol (With shields on both sides)

Bearing ring shape symbol (With stop rings on outer ring)

Dimension series

Dimension series



Seal symbol (With seals on both sides)


TypesThe types of Roller Bearings shown in Table 1 are available.

The identification number of Roller Bearings consists of a model code, dimensions, any supplemental codes and a classification symbol. The arrangement examples are shown below.


Caged Roller Bearings

These bearings are suitable for high-speed rotations and fluctuating loads. Also, as the axial distance between the double-row rollers is comparatively large, large moment loads can be supported.Caged roller bearings with seal incorporate seals on both sides. Synthetic resin rubber seals are excellent in the prevention of dust penetration and grease leak-age, providing an excellent sealing effect.

Full Complement Roller Bearings

These bearings are suitable for low-speed rotations or oscillating motions and heavy loads. Similar to the caged type, the structure is advantageous for support-ing moment loads.The bearings with seal incorporate seals on both sides.


These bearings are the double-row full complement type with a low sectional height designed for use in sheaves. There are two types; the sealed type and the shield type. They can withstand heavy radial loads and shock loads at comparatively low-speed rotations, and can also withstand axial loads.They can easily be fixed axially to sheaves using the stop rings of the outer ring. As the width of the inner ring is designed to be larger than that of the outer ring, they require no spacer between sheaves. The structure is stable because the double-row rollers can withstand the moment loads caused by rope transi-tion.The surfaces of these bearings are treated to have high corrosion resistance.


Type

Series

Standard

With seal

With shield

NAU49TRU

NAU49 … UUTRU … UU

NAG49

NAS50 … UUNR

NAS50 … ZZNR

NAG49 … UU

Caged typeFull

complement type

For sheaves

AccuracyRoller Bearings are manufactured in accordance with JIS (See page A31.). A side plate for inner ring is assembled on one side of caged or full complement roller bearings. The tolerance of bore diameter of the side plate is shown below. Tolerances of Roller Bearings for Sheaves represent the values before surface treatment. The tolerance of internal distance between cir-clips is shown below.

Tolerance of bore diameter of the side plate d: E7Tolerance of internal distance between cir-clips C1: 0〜+0.4mm

ClearanceRoller Bearings are manufactured to the CN clear-ance shown in Table 18 on page A37. However, Roller Bearings for Sheaves are manufactured so that proper operating clearances are obtained after being mounted with a specified fit.

FitThe recommended fits for Roller Bearings are shown in Tables 21 to 22 on pages A41 and A42. The rec-ommended fits for Roller Bearings for Sheaves are shown in Table 2.

LubricationBearings with prepacked grease are shown in Table 3. For Caged Roller Bearings and Full Complement Roller Bearings, ALVANIA GREASE S2 (Shell Lubricants Japan K.K.) is prepacked as the lubricating grease. For Roller Bearings for Sheaves, ALVANIA GREASE EP2 (Shell Lubricants Japan K.K.) is pre-packed as the lubricating grease.In the case of bearings without prepacked grease, perform proper lubrication for use. Operating without lubrication will increase the wear of the rolling contact surfaces and shorten their lirees.

Oil HoleThe number of oil holes of the inner and outer rings is shown in Table 4.

Operating Temperature RangeThe operating temperature range for Roller Bearings is −20〜＋120. However, the maximum allow-able temperature for Roller Bearings for Sheaves is ＋110.

Table 2 Recommended fits for Roller Bearings for Sheaves


g6 N7

Tolerance class of housing bore

Table 3 Bearings with prepacked grease

Type

Caged type


For sheaves

NAU ，TRU

NAG

NAS

With shieldsWith sealsStandard

××−

〇〇〇

−−〇


Table 4 Number of oil holes of the inner ring and outer ring

　　　　　　　　Type

Caged type


For sheaves

NAUd≦ 17

17＜ d

d≦ 17

17＜ d

Nominal bore diameter d mm

TRU

NAG

NAS

With shieldsNumber of oil holes

of the inner ringWith sealsStandard

Number of oil holes of the outer ring

0

2

2

0

2

0

2

2

0

2

0

0

0

0

0 2

Remark　The bearings with oil holes are also provided with an oil groove.

E


Axial Load CapacityAxial load capacity is not determined from the basic dynamic load rating based on rolling fatigue, but is determined by the amount of heat generated by slid-ing contact between the ends of rollers and guide shoulders of the inner and outer rings. It is therefore limited by the load conditions, sliding speeds, lubrica-tion methods, etc.The axial load capacity of Roller Bearings is obtained from the following equation.If the axial load increases in comparison with the radi-al load, it will start to interfere with the smooth rolling motion. The axial load should therefore be within 20% of the radial load.

Calculation example

When a roller bearing for sheaves NAS 5016 ZZ NR

is run at n = 250 min-1 under grease lubrication and subjected to an intermittent axial load, the axial load capacity is calculated as follows.

As the bearing bore diameter is 80 mm, fA = 18000 is obtained from the axial load capacity line of Fig. 1 (ii).

a＝ 1

dm≒ 80＋ 125　

＝ 102.5

2

dmn＝ 102.5 x 250 ≒ 25600

From Fig. 2, fv ≒ 0.87Therefore, the axial load capacity CA is obtained.CA＝ fv a fA ＝ 0.87×1×18000 ≒ 15700 N

800000

600000

400000

200000

100000

80000

60000

40000

20000

100008000

6000

4000

2000

1000800600

400

200

10010 20 40 60 80 100 200 400

　　　CA＝fv a fA ……………………………………(1)　where, 　CA：Axial load capacity 　N

　 fv：Speed correction factor

fv is obtained from Fig.2 by calculat-

ing the dmn value.

dmn ＝ dm×n dm： Mean value of bearing bore

and outside diameters　mm

　　 n ：Rotational speed　min-1

When dmn ≦ 1000, fv ＝ 1.

a： Value determined by type of bearing

(See Table 5. ) fA：Axial load capacity factor (See Fig.1.)

Fig. 1 Axial load capacity factor

Table 5 Value by type of bearing

Type of bearing

NAS 50

NAG 49

NAU 49，TRU

1

0.78

0.7

a

（dm≒d＋D）　　　 2

Fig. 3 Mounting examples

MountingUnlike needle roller bearings, Caged and Full Complement Roller Bearings are non-separable.As shown in Fig. 3 (1), the inner ring should be press-fitted until it makes close contact with the shaft shoul-der, and fixed axially with a nut. Dimensions of the shoulders of the shaft and housing should be based

on J and EW shown in the table of dimensions, respectively.In the case of Roller Bearings for Sheaves, as shown in Fig. 3 (2), the outer ring should be fixed by stop rings after being press-fitted into the sheaves, and the inner ring should be fixed securely in the axial direc-tion.

(2)

(1)

300000

200000

100000

50000

5000

1000 1.0

0.98

0.95

0.90

0.80

0.70

0.60

0.40

0.20

0

0.30

0.30

10000

Grease lubricationOil lubrication

dmn fv

Fig. 2 Speed correction factor

E


ROLLER BEARINGS

g d D C rs min J(1)

Notes(1)　　Minimum allowable value of chamfer dimension r(2) 　 Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.

Considering that the axial load acts under practical operating conditions, up to 1/10 of this value is recommended for actual use.Remarks1.　 The NAG and NAU series with a bore diameter d of 17 mm or less have no oil hole. In others, the outer ring has an oil groove and

two oil holes. 2.　No grease is prepacked. Perform proper lubrication.

Shaftdia.mm


Caged type

Mass (Ref.)


Ew

25.5 24.5

28.5 27.5

38 36.5 80.5

41 39.5 100

76.5 76 96.5 122

89.5 89 154

173

103 102 197

260

172 168 270

10

12

15

17

20

25

28

30

32

35

NAG 4900

NAG 4901

NAG 4902

NAG 4903

NAG 4904

NAG 4905

NAG 4906

NAG 4907

NAU 4900

NAU 4901

NAU 4902

NAU 4903

NAU 4904

NAU 4905

NAU 4906

NAU 4907

TRU 153320

TRU 173425

TRU 203820TRU 203825

TRU 254425

TRU 284530

TRU 304830

TRU 325230

TRU 355630

1010

1212

151515

171717

20202020

252525

28

303030

32

353535

2222

2424

282833

303034

37373838

424244

45

474748

52

555556

1313

1313

131320

131325

17172025

171725

30

171730

30

202030

0.30.3

0.30.3

0.30.30.3

0.30.30.3

0.30.30.30.3

0.30.30.3

0.3

0.30.30.3

0.6

0.60.60.6

15.515.5

1717

212119.5

22.522.521.5

24242525

29.529.530.5

31.5

343435

38

404040

18.518.5

2020

242427

25.525.529.5

31.531.532.532.5

373738

39.5

41.541.542.5

46

494949

(1)


NAG49（d ≦ 17）


Caged Roller BearingsFull Complement Roller Bearings

D d JEw

C

r

r

r

r

NAG49 NAU49 TRU

9 6506 580

10 3006 950

11 8007 950

10 400

12 3008 240

18 000

15 60010 70012 10018 700

17 50011 90021 000

28 700

19 40013 00029 400

29 800

28 70019 50032 200

10 8006 470

12 0007 120

15 2009 020

10 400

16 5009 670

21 600

18 90011 30013 40023 600

23 20013 90028 900

43 800

27 60016 20046 600

44 200

43 80026 30049 800

17 00030 000

15 00025 000

12 00020 00020 000

11 00019 00018 000

9 50016 00016 00016 000

7 50013 00013 000

12 000

6 50012 00011 000

10 000

5 50010 00010 000

Basic dynamicload rating

C

N


C0

N


min-1

NAU49（d ≦ 17）

C

r

r

r

r

D d JEw D

C

r

r

r

r

d d JE7

Ew

C

r

r

r

r

D d d JE7

Ew

E


ROLLER BEARINGS



Considering that the axial load acts under practical operating conditions, up to 1/10 of this value is recommended for actual use.

Remarks1.　The outer ring has an oil groove and two oil holes.


Shaftdia.mm


Caged type

Mass (Ref.)


g

(1)


225265220

40NAG 4908

NAU 4908

TRU 405930

404040

625962

223022

0.6 0.6 0.6

46 45 46

56 52.5 56

29042 TRU 426230 42 62 30 0.6 48 56.5

265295260

45NAG 4909

NAU 4909

TRU 456430

454545

686468

223022

0.6 0.6 0.6

51 50.5 51

61 58.5 61

270265710

50NAG 4910

NAU 4910

TRU 507745

505050

727277

222245

0.6 0.6 1

55.5 55.5 58

65.5 65.5 69

395385615

55NAG 4911

NAU 4911

TRU 558138

555555

808081

252538

1 1 1

61.5 61.5 61.5

72.5 72.5 72.5

425415880

60NAG 4912

NAU 4912

TRU 608945

606060

858589

252545

1 1 1

67 67 69.5

77.5 77.5 81.5

455440

65 NAG 4913

NAU 4913

6565

9090

2525

1 1

72 72

83 83

725705

70 NAG 4914

NAU 4914

7070

100100

3030

1 1

79 79

91.5 91.5

775750

1 24075

NAG 4915

NAU 4915

TRU 7510845

757575

105105108

303045

1 1 1

83.5 83.5 85.5

95.5 95.5 98.5

81579080 NAG 4916

NAU 4916

8080

110110

3030

1 1

89.5 89.5

102 102


d D C rs min J Ew


C

N


C0

N


min-1

49 50062 50029 400

5 0008 5008 500

34 60034 70023 400

57 800 8 00034 600

54 70059 70032 800

4 5008 0008 000

36 40032 60024 800

59 90036 200

134 000

4 0007 0007 000

38 20026 20075 700

77 70047 000

104 000

3 5006 5006 500

48 10033 00061 400

84 30051 400

152 000

3 5006 0006 000

50 30034 70088 100

93 00057 100

3 0005 500

53 20036 900

139 00084 600

3 0005 000

77 70053 700

146 00088 200

190 000

2 5005 0004 500

80 00054 800

103 000

157 00095 500

2 5004 500

83 00057 200

NAG49 NAU49 TRU

D

C

r

r

r

r

d d JE7

Ew

C

r

r

r

r

D d d JE7

Ew

E


ROLLER BEARINGS



Considering that the axial load acts under practical operating conditions, up to 1/10 of this value is recommended for actual use.

Remarks1.　The outer ring has an oil groove and two oil holes.


Shaftdia.mm


Caged type

Mass (Ref.)


g

(1)


1 1901 5301 1501 500

85

NAG 4917

NAU 4917

TRU 8511850

TRU 8512045

85858585

120118120120

35503545

1.5 1 1.5 1.5

96 94.5 96 96.5

110107.5110110

1 2501 2101 740

90NAG 4918

NAU 4918

TRU 9012550

909090

125125125

353550

1.5 1.5 1.5

101 101 101

115.5115.5114

1 3001 27095 NAG 4919

NAU 4919

9595

130130

3535

1.5 1.5

106 106

120.5120.5

1 8501 9001 770

100NAG 4920

NAU 4920

TRU 10013550

100100100

140135140

405040

1.5 1.5 1.5

114.5 112 114.5

129.5125.5129.5

2 890105 TRU 10515350 105 153 50 1.5 120 138

2 0101 930110 NAG 4922

NAU 4922

110110

150150

4040

1.5 1.5

123 123

138.5138.5

2 7802 680120 NAG 4924

NAU 4924

120120

165165

4545

1.5 1.5

136 136

153.5153.5

4 490125 TRU 12517860 125 178 60 1.5 143.5 162

3 7503 610130 NAG 4926

NAU 4926

130130

180180

5050

2 2

147 147

165.5165.5

4 790135 TRU 13518860 135 188 60 1.5 154 172.5

3 9903 840140 NAG 4928

NAU 4928

140140

190190

5050

2 2

157.5 157.5

176176


d D C rs min J Ew

200 000222 000120 000215 000

2 5004 0004 0004 000


min-1

111 000114 00075 400

110 000

211 000130 000240 000

2 5004 0004 000

114 00079 500

119 000

222 000136 000

2 0004 000

117 00081 000

292 000264 000181 000

2 0003 5003 500

152 000124 000106 000

286 000 3 500159 000

322 000200 000

1 9003 500

161 000113 000

431 000268 000

1 7003 000

208 000146 000

408 000 3 000211 000

495 000304 000

1 6002 500

240 000166 000

442 000 2 500220 000

531 000327 000

1 5002 500

249 000174 000

NAG49 NAU49 TRU


C

N


C0

N

D

C

r

r

r

r

d d JE7

Ew

C

r

r

r

r

D d d JE7

Ew

E


ROLLER BEARINGS

Notes(1)　　Minimum allowable value of chamfer dimension r(2) 　 Allowable rotational speed applies to grease lubrication. Considering that the axial load acts under practical operating conditions,

up to 1/10 of this value is recommended for actual use.Remarks1.　 The NAG and NAU series with a bore diameter, d, of 17 mm or less have no oil hole. In others, the outer ring has an oil groove

and two oil holes.2.　The bearings with seals are provided with prepacked grease.

Shaftdia.mm

Full complementtype

Caged type

Mass (Ref.)


g

(1)


25.5NAG 4900UU 10 22 13 0.3 15.5

28.5NAG 4901UU 12 24 13 0.3 17

38 80.5

NAG 4902UU

TRU 153320UU

1515

2833

1320

0.30.3

21 19.5

41 100

NAG 4903UU

TRU 173425UU

1717

3034

1325

0.30.3

22.5 21.5

76.5 76 96.5 122

NAG 4904UU

NAU 4904UU

TRU 203820UUTRU 203825UU

20202020

37373838

17172025

0.30.30.30.3

24 24 25 25

89.5 89 154

NAG 4905UU

NAU 4905UU

TRU 254425UU

252525

424244

171725

0.30.30.3

29.5 29.5 30.5

173 TRU 284530UU 28 45 30 0.3 31.5

103 102 197

NAG 4906UU

NAU 4906UU

TRU 304830UU

303030

474748

171730

0.30.30.3

34 34 35

260 TRU 325230UU 32 52 30 0.6 38

172 168 270

NAG 4907UU

NAU 4907UU

TRU 355630UU

353535

555556

202030

0.60.60.6

40 40 40

225 265 220

NAG 4908UU

NAU 4908UU

TRU 405930UU

404040

625962

223022

0.60.60.6

46 45 46

12

15

17

20

25

28

30

32

35

40

10



d D C r s min J

With SealWith Seal

19.5 9 650 10 800 10 000

21 10 300 12 000 9 000

25 27

11 80010 400

15 20010 400

7 0009 500

26.5 29.5

12 30018 000

16 50021 600

6 5008 500

31.5 31.5 32.5 32.5

15 60010 70012 10018 700

18 90011 30013 40023 600

5 5008 0007 5007 500

37 37 38

17 50011 90021 000

23 20013 90028 900

4 5006 5006 000

39.5 28 700 43 800 6 000

41.5 41.5 42.5

19 40013 00029 400

27 60016 20046 600

4 0005 5005 500

46 29 800 44 200 5 000

49 49 49

28 70019 50032 200

43 80026 30049 800

3 5004 5004 500

56 52.5 56

34 60034 70023 400

49 50062 50029 400

3 0004 0004 000


min-1

NAG49 … UU（d ≦ 17）

NAG49 … UU NAU49 … UUTRU … UU


C

N


C0

NEw

D d JEw

C

r

r

r

r

D Jd dE7

Ew

C

r

r

r

r

C

D dEw JdE7

r

r

r

r

E



up to 1/10 of this value is recommended for actual use.Remarks1.　The outer ring has an oil groove and two oil holes.

2.　The bearings with seals are provided with prepacked grease.

Shaftdia.mm

Full complementtype

Caged type

Mass (Ref.)


g d D C rs min J(1)


290 TRU 426230UU 42 62 30 0.6 48

265295260

NAG 4909UU

NAU 4909UU

TRU 456430UU

454545

686468

223022

0.60.60.6

51 50.5 51

45

42

270265710

50NAG 4910UU

NAU 4910UU

TRU 507745UU

505050

727277

222245

0.60.61

55.5 55.5 58

395385615

55NAG 4911UU

NAU 4911UU

TRU 558138UU

555555

808081

252538

111

61.5 61.5 61.5

425415880

60NAG 4912UU

NAU 4912UU

TRU 608945UU

606060

858589

252545

111

67 67 69.5

455440

65 NAG 4913UU

NAU 4913UU

6565

9090

2525

11

72 72

725705

70 NAG 4914UU

NAU 4914UU

7070

100100

3030

11

79 79

775750

1 24075

NAG 4915UU

NAU 4915UU

TRU 7510845UU

757575

105105108

303045

111

83.5 83.5 85.5

81579080 NAG 4916UU

NAU 4916UU

8080

110110

3030

11

89.5 89.5

ROLLER BEARINGS


With SealWith Seal


56.5 34 600 57 800 4 000

61 58.5 61

36 40032 60024 800

54 70059 70032 800

2 5003 5003 500


C

N


C0

N


min-1Ew

65.5 65.5 69

38 20026 20075 700

59 90036 200

134 000

2 5003 5003 500

72.5 72.5 72.5

48 10033 00061 400

77 70047 000

104 000

2 0003 0003 000

77.5 77.5 81.5

50 30034 70088 100

84 30051 400

152 000

2 0003 0003 000

83 83

53 20036 900

93 00057 100

1 9002 500

91.5 91.5

77 70053 700

139 00084 600

1 8002 500

95.5 95.5 98.5

80 00054 800

103 000

146 00088 200

190 000

1 7002 5002 000

102 102

83 00057 200

157 00095 500

1 6002 000


D Jd dE7

Ew

C

r

r

r

r

C

D dEw JdE7

r

r

r

r

E



up to 1/10 of this value is recommended for actual use.Remarks1.　The outer ring has an oil groove and two oil holes.

2.　The bearings with seals are provided with prepacked grease.

Shaftdia.mm

Full complementtype

Caged type

Mass (Ref.)


g

(1)


1 1901 5301 1501 500

85NAG 4917UU

NAU 4917UU

TRU 8511850UU

TRU 8512045UU

85858585

120118120120

35503545

1.511.51.5

96 94.5 96 96.5

1 2501 2101 740

90NAG 4918UU

NAU 4918UU

TRU 9012550UU

909090

125125125

353550

1.51.51.5

101 101 101

1 3001 270

95 NAG 4919UU

NAU 4919UU

9595

130130

3535

1.51.5

106 106

1 8501 9001 770

100NAG 4920UU

NAU 4920UU

TRU 10013550UU

100100100

140135140

405040

1.51.51.5

114.5 112 114.5

2 890105 TRU 10515350UU 105 153 50 1.5 120

2 0101 930

110 NAG 4922UU

NAU 4922UU

110110

150150

4040

1.51.5

123 123

2 7802 680

120 NAG 4924UU

NAU 4924UU

120120

165165

4545

1.51.5

136 136

4 490125 TRU 12517860UU 125 178 60 1.5 143.5

3 7503 610

130 NAG 4926UU

NAU 4926UU

130130

180180

5050

22

147 147

4 790135 TRU 13518860UU 135 188 60 1.5 154

3 9903 840

140 NAG 4928UU

NAU 4928UU

140140

190190

5050

22

157.5 157.5


d D C rs min J

ROLLER BEARINGS


With SealWith Seal


min-1

110 107.5 110 110

111 000114 00075 400

110 000

200 000222 000120 000215 000

1 5002 0002 0002 000

115.5 115.5 114

114 00079 500

119 000

211 000130 000240 000

1 4001 9001 900

120.5 120.5

117 00081 000

222 000136 000

1 3001 800

129.5 125.5 129.5

152 000124 000106 000

292 000264 000181 000

1 2001 7001 700

138 159 000 286 000 1 600

138.5 138.5

161 000113 000

322 000200 000

1 1001 600

153.5 153.5

208 000146 000

431 000268 000

1 0001 400

162 211 000 408 000 1 400

165.5 165.5

240 000166 000

495 000304 000

9501 300

172.5 220 000 442 000 1 300

176 176

249 000174 000

531 000327 000

9001 200



C

N


C0

NEw

D Jd dE7

Ew

C

r

r

r

r

C

D dEw JdE7

r

r

r

r

E


ROLLER BEARINGS



up to 1/10 of this value is recommended for actual use.Remarks1.　The inner ring has an oil groove and two oil holes.

2.　Roller Bearings for Sheaves are provided with prepacked grease.

Shaftdia.mm

Sealed type Shield type

Mass (Ref.)


kg


0.55NAS 5008UUNR NAS 5008ZZNR 40 68 71.8 38 37 28 4.540 0.70NAS 5009UUNR NAS 5009ZZNR 45 75 78.8 40 39 30 4.545 0.75NAS 5010UUNR NAS 5010ZZNR 50 80 83.8 40 39 30 4.550 1.15NAS 5011UUNR NAS 5011ZZNR 55 90 94.8 46 45 34 5.555 1.20NAS 5012UUNR NAS 5012ZZNR 60 95 99.8 46 45 34 5.560 1.30NAS 5013UUNR NAS 5013ZZNR 65 100 104.8 46 45 34 5.565 1.90NAS 5014UUNR NAS 5014ZZNR 70 110 114.5 54 53 42 5.570 2.00NAS 5015UUNR NAS 5015ZZNR 75 115 119.5 54 53 42 5.575 2.65NAS 5016UUNR NAS 5016ZZNR 80 125 129.5 60 59 48 5.580 2.80NAS 5017UUNR NAS 5017ZZNR 85 130 134.5 60 59 48 5.585 3.70NAS 5018UUNR NAS 5018ZZNR 90 140 145.4 67 66 54 690 3.90NAS 5019UUNR NAS 5019ZZNR 95 145 150.4 67 66 54 695 4.05NAS 5020UUNR NAS 5020ZZNR 100 150 155.4 67 66 54 6100 6.50NAS 5022UUNR NAS 5022ZZNR 110 170 175.4 80 79 65 7110 6.95NAS 5024UUNR NAS 5024ZZNR 120 180 188.4 80 79 65 712010.5NAS 5026UUNR NAS 5026ZZNR 130 200 208.4 95 94 77 8.513011.0NAS 5028UUNR NAS 5028ZZNR 140 210 218.4 95 94 77 8.514013.5NAS 5030UUNR NAS 5030ZZNR 150 225 233.4 100 99 81 915016.5NAS 5032UUNR NAS 5032ZZNR 160 240 248.4 109 108 89 9.516022.5NAS 5034UUNR NAS 5034ZZNR 170 260 270 122 121 99 11170


d D D2 B C C1 S(1)


min-1

2 1.5 0.6 50 79 500 116 000 2 500

2 1.5 0.6 56 95 500 144 000 2 000

2 1.5 0.6 61 100 000 158 000 2 000

2.5 2 0.6 68 118 000 193 000 1 800

2.5 2 0.6 73 123 000 208 000 1 700

2.5 2 0.6 78 128 000 224 000 1 600

2.5 2 0.6 84 171 000 284 000 1 400

2.5 2 0.6 91 179 000 308 000 1 300

2.5 2 0.6 97 251 000 428 000 1 300

2.5 2 0.6 101 257 000 446 000 1 200

2.5 2.5 0.6 110 305 000 540 000 1 100

2.5 2.5 0.6 114 312 000 562 000 1 100

2.5 2.5 0.6 118 318 000 584 000 1 000

2.5 3 1 130 384 000 697 000 900

3 3 1 139.5 400 000 750 000 850

3 3 1 156 537 000 1 000 000 750

3 3 1 167 543 000 1 070 000 700

3 3.5 1 176.5 623 000 1 210 000 650

3 3.5 1.5 188.5 720 000 1 390 000 650

4 3.5 1.5 204.5 857 000 1 730 000 600

NAS50 … UUNR NAS50 … ZZNR


C

N


C0

Nf c rs min J

CC

B

S

D d JD

f

c

r

r

30 °

2

1

CC

B

Sf

30

DD

c

°

d J

r

r

2

1

E


ROLLER BEARINGS



up to 1/10 of this value is recommended for actual use.Remarks1.　The inner ring has an oil groove and two oil holes.

2.　Roller Bearings for Sheaves are provided with prepacked grease.

Shaftdia.mm

Sealed type Shield type

Mass (Ref.)


kg


30.0NAS 5036UUNR NAS 5036ZZNR 180 280 294 136 135 110 12.5180 31.5NAS 5038UUNR NAS 5038ZZNR 190 290 306 136 135 110 12.5190 40.5NAS 5040UUNR NAS 5040ZZNR 200 310 326 150 149 120 14.5200 52.0NAS 5044UUNR NAS 5044ZZNR 220 340 356 160 159 130 14.5220 55.5NAS 5048UUNR NAS 5048ZZNR 240 360 376 160 159 130 14.5240 85.0NAS 5052UUNR NAS 5052ZZNR 260 400 416 190 189 154 17.5260 90.9NAS 5056UUNR NAS 5056ZZNR 280 420 440 190 189 154 17.5280


d D D2 B C C1 S(1)


min-1

5 3.5 1.5 217 1 070 000 2 140 000 550

5 3.5 1.5 225 1 120 000 2 230 000 500

5 3.5 1.5 242 1 310 000 2 650 000 500

6 4 1.5 260 1 510 000 3 110 000 450

6 4 1.5 278.5 1 570 000 3 350 000 400

7 5 2 312 2 130 000 4 510 000 350

7 5 2 335 2 210 000 4 860 000 350

NAS50 … UUNR NAS50 … ZZNR


C

N


C0

Nf c rs min J

CC

B

S

D d JD

f

c

r

r

30 °

2

1

CC

B

Sf

30

DD

c

°

d J

r

r

2

1

F

F1 F2



Structure and FeaturesIKO Thrust Bearings consist of a precisely made cage and rollers. They have high rigidity and high load capacities and can be used in small spaces.Thrust Needle Roller Bearings incorporate needle rollers, while Thrust Roller Bearings incorporate cylin-drical rollers. Various types of raceway rings are available, and suitable bearings can be selected according to the operating conditions.When the bearing mounting surfaces of a machine are heat-treated and finished by grinding as race-ways, Thrust Bearings can be used without raceway rings allowing the machine to be made more compact. They are most suited to applications where high accu-racy is required at high speeds and under fluctuating heavy loads, such as driving mechanisms for automo-biles, machine tools, and high-pressure pumps.

Structures of Thrust Bearings

Needle roller

Cage

Cylindrical roller

Cage

Inner ring

Cylindrical roller

Outer ring

Inner ring

Outer ring

Thrust washer

Cage

F

1N=0.102kgf=0.2248lbs.1mm=0.03937inchF3 F4

TypesIn IKO Thrust Bearings, the types shown in Table 1 are available.

The identification number of Thrust Bearings consists of a model code, dimensions and a classification sym-bol. Some examples are shown below.



These bearings consist of a cage made from a steel plate, which is precisely press formed and surface-hardened, and needle rollers with a diameter variation within 2 μ m. They have a rigid structure and a high lubricant-retaining capacity.As they have the lowest sectional height compared with other thrust bearings, they can be used instead of conventional thrust washers and can withstand high-speed rotations with a low coefficient of friction.Specially designed thin inner rings (WS) and outer rings (GS), and especially thin (1 mm thick) thrust washers (AS), are available for use in various applica-tions.These bearings are generally used by utilizing their inner surface as the guide surface.


In this series, the caged cylindrical rollers AZK and the complete bearings AZ in which AZK are combined with an inner ring (WS) and an outer ring (GS) are available.The cage has a special precise structure which is highly rigid, and cylindrical rollers are outwardly arranged and guided by the cage with exact precision to enable them to withstand heavy loads even at high rotational speeds.

Owing to the high accuracy of the bearing height T, they are suitable for use in machine tools, ultra-high pressure pumps, etc.These bearings are generally used by utilizing their inner surface as the guide surface.

Table 1.1 Type of bearing

Type

Model code NTB AZK AZ

Thrust roller bearingsThrust needle roller bearings Without inner and outer rings With inner and outer rings

Table 1.2 Type of bearing ring

Type

Model code WS GS AS

Outer ring Thrust washerInner ring


NTB 25

Type of bearing

42


Example 1 (In case of NTB or AS)

Example 2 (In case of AZ or AZK)


AZ 25 11

Type of bearing

42 P5


Bearing height（11mm）

Outside diameter（42mm）

Bore diameter（25mm）

Accuracy class（1）（Class 5）

Example 3 (In case of WS or GS)


WS 25 42 P5

Accuracy class （Class 5）



Type of bearing ring




Note(1)　Not applicable to the model AZK.

AccuracyThe accuracy of Thrust Bearings is based on JIS B 1514-2, -3 as shown in Table 2.

Table 2.1 TolerancesItem

Type of bearing



Inner rings

Outer rings

Thrust washers

NTB

AZK

AZ

WS

GS

AS

dD

Dw

dc

Dc

Dw

TdDBdDBdDs

E11

c12

Equivalent to JIS B 1506 Class 2

As per Table 2.2

As per Table 2.3

As per Table 2.4

b12

h11

B12

As per Table 2.4

h11

E12

e12

± 50

Bore diameter

Outside diameter

Width

Bore diameter

Outside diameter

Width

Height

Bore diameter

Outside diameter

Width

Bore diameter

Outside diameter

Width

Bore diameter

Outside diameter

Width

DimensionDimension

symbolTolerance

unit: μ m

Table 2.2 Tolerances of bore and outside diameters for AZK series

Nominal dimensionmm

Over

− 50

100

200

300

400

50

100

200

300

400

500

＋ 100

＋ 200

＋ 300

＋ 500

＋ 700

−

0

0

0

0

0

−

0

0

0

0

0

0

− 300

− 400

− 500

− 700

− 1000

− 1200

Incl. High Low High Low

∆dc

Cage bore diameter deviation

∆Dc

Cage outside diameter deviation

unit: μ m Table 2.3 Tolerances of height for AZ series

dNominal bearing bore dia.

mm

Over

− 18

30

50

80

120

180

250

315

400

18

30

50

80

120

180

250

315

400

500

0

0

0

0

0

0

0

0

0

0

− 75

− 75

− 100

− 125

− 150

− 175

− 200

− 225

− 300

− 400

Incl. High Low

∆Ts

Deviation of an actual bearing height

unit: μ m



1 ≦ Dw ≦ 10

10 ＜ Dw ≦ 30

F


Table 2.5 Permissible limit values for chamfer dimension

Table 2.4 Tolerances and allowable values for WS and GS

d or D (1) Nominal bearing bore

dia. or outside dia.

mm

∆dmp

Single plane mean bore diameter deviation

Vdsp

Bore diameter variation in a sin-gle radial plane

∆Dmp

Single plane mean outside diameter deviation

VDsp

Outside diameter variation in a sin-gle radial plane

Inner ring or outer ringOuter ringInner ring

Si or Se (2)Bearing ring thickness variation

Class 0 Class 6 Class 5

− 18

30

50

80

120

180

250

315

400

18

30

50

80

120

180

250

315

400

500

0

0

0

0

0

0

0

0

0

0

− 8− 10

− 12

− 15

− 20

− 25

− 30

− 35

− 40

− 45

6

8

9

11

15

19

23

26

30

34

− 11

− 13

− 16

− 19

− 22

− 25

− 30

− 35

− 40

− 45

0

0

0

0

0

0

0

0

0

0

5

5

6

7

8

9

10

13

15

18

10

10

10

10

15

15

20

25

30

30

8

10

12

14

17

19

23

26

30

34

3

3

3

4

4

5

5

7

7

9

unit: μ m

Over Incl. High Low Max. LowHigh Max. Max.

Notes(1)　 d for ∆dmp and Vdp, and D for ∆Dmp and VDp, respectively. d for thickness variations of inner and outer rings .

(2)　 di for thickness variations of rings for NAX(l) and NBX(l) .

unit: mm

Bearing bore or bearing outside surface

(Axial direction)

(Rad

ial d

irec

tio

n)

Sid

e su

rfac

e o

f in

ner

rin

g o

r o

ute

r ri

ng

r s m

ax

rs min

rs max

rs min

r s m

in

0.3

0.6

1

1.1

1.5

2

2.1

3

4

5

0.8

1.5

2.2

2.7

3.5

4

4.5

5.5

6.5

8

rs minRadial and axial directions

rs max

FitThe recommended fits for Thrust Bearings are shown in Table 3.

MountingWhen mounting Thrust Bearings, the following items should be considered. 1 When inner and outer rings are not used, the hard-ness of the raceway surfaces should be 58〜 64HRC, the effective hardening depth should be adequate,

and the surface roughness should be less than 0.2μmRa. 2 When mounting inner and outer rings to shaft and housing bore, dimensions related to mounting should be based on the dimension tables.Also, the mounting surfaces should be finished at right angles to the center axis and they should be suf-ficiently rigid. 3 To avoid elastic deformation, the thrust washer AS must be seated uniformly on its mating surface.A small warp in an AS washer will be corrected auto-matically when an axial load is applied. 4 Thrust Roller Bearings are combinations of a cop-per alloy component and cylindrical rollers. When handling the AZK itself, care should be taken to pre-vent deformations, blemishes, etc.



Inner rings

Outer rings

Thrust washers

NTB

AZK

AZ

WS

GS

AS

h8

h6

h6

h8

H7

H7

Type of bearingTolerance class

Shaft Housing bore

Table 3 Recommended fits


F


THRUST BEARINGS


Notes(1)　Minimum allowable value of chamfer dimension r(2)　Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 25% of this value is allowable.

Shaftdia.

mm

Thrust washerThrust needle roller bearing


Mass (Ref.)

g

10

12

15

16

17

18

20

25

30

35

40

45

50

55

60

65

70

75

80

85

GS 1024

GS 1226

GS 1528

GS 1629

GS 1730

GS 1831

GS 2035

GS 2542

GS 3047

GS 3552

GS 4060

GS 4565

GS 5070

GS 5578

GS 6085

GS 6590

GS 7095

GS 75100

GS 80105

GS 85110

WS 1024

WS 1226

WS 1528

WS 1629

WS 1730

WS 1831

WS 2035

WS 2542

WS 3047

WS 3552

WS 4060

WS 4565

WS 5070

WS 5578

WS 6085

WS 6590

WS 7095

WS 75100

WS 80105

WS 85110

AS 1024

AS 1226

AS 1528

AS 1629

AS 1730

AS 1831

AS 2035

AS 2542

AS 3047

AS 3552

AS 4060

AS 4565

AS 5070

AS 5578

AS 6085

AS 6590

AS 7095

AS 75100

AS 80105

AS 85110

Outer ringInner ring

8

8.9

9.3

9.8

10.2

10.7

13.8

21

24

31.5

42.5

53.5

58.5

93

105

124

132

153

162

170

Mass (Ref.)

g

Mass (Ref.)

g

2.9

3.2

3.4

3.6

3.7

3.9

5

6.9

7.9

8.9

12.1

13.3

14.5

18.5

22

23.5

25

26.5

28

29.5

NTB 1024

NTB 1226

NTB 1528

NTB 1629

NTB 1730

NTB 1831

NTB 2035

NTB 2542

NTB 3047

NTB 3552

NTB 40603

NTB 4565

NTB 5070

NTB 5578

NTB 6085

NTB 6590

NTB 7095

NTB 75100

NTB 80105

NTB 85110

3.3

3.8

4.1

4.3

4.5

4.7

6.1

8.2

9.4

10.6

22

24.5

26.5

33.5

38.5

41.5

61

65

68.5

72


d D Dw s B rs min

10

12

15

16

17

18

20

25

30

35

40

45

50

55

60

65

70

75

80

85

24

26

28

29

30

31

35

42

47

52

60

65

70

78

85

90

95

100

105

110

2

2

2

2

2

2

2

2

2

2

3

3

3

3

3

3

4

4

4

4

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

2.75

2.75

2.75

2.75

2.75

2.75

2.75

3

3

3.5

3.5

4

4

5

4.75

5.25

5.25

5.75

5.75

5.75

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.6

0.6

0.6

0.6

0.6

0.6

0.6

1

1

1

1

1

1

14

16

18

19

20

21

23

29

34

39

45

50

55

61

66

71

75

80

85

90

22

24

26

27

28

29

33

40

45

50

57

62

67

75

82

87

91

96

101

106

7 820

8 340

8 830

9 070

9 320

9 550

11 700

14 400

15 400

16 300

24 200

25 900

27 600

32 400

38 200

40 100

47 400

48 400

49 500

50 300

23 900

26 900

29 900

31 400

32 900

34 400

46 500

64 700

73 300

81 900

108 000

121 000

135 000

171 000

219 000

237 000

244 000

256 000

267 000

279 000

15 000

13 000

12 000

11 000

11 000

10 000

9 000

7 500

6 500

5 500

5 000

4 500

4 000

4 000

3 500

3 000

3 000

3 000

2 500

2 500

Ci Ce(1)


C

N


C0

N


min-1


NTB AS WS GS

D

Dw

d i e

C C

S

De1

2

dE12

B

r

dDb

12 D d

B

r

B12

F


THRUST BEARINGS



Shaftdia.

mm

Thrust washerThrust needle roller bearing


Mass (Ref.)

g

90

100

110

120

130

GS 90120

GS 100135

GS 110145

GS 120155

GS 130170

WS 90120

WS 100135

WS 110145

WS 120155

WS 130170

AS 90120

AS 100135

Outer ringInner ring

250

350

380

410

660

Mass (Ref.)

g

Mass (Ref.)

g

38

50

NTB 90120

NTB 100135

NTB 110145

NTB 120155

NTB 130170

92

119

129

139

225


90

100

110

120

130

120

135

145

155

170

4

4

4

4

5

1

1

6.5

7

7

7

9

1

1

1

1

1

96

107

117

127

137

116

131

141

151

165

64 500

80 300

83 200

87 900

120 000

394 000

541 000

578 000

634 000

839 000

2 500

2 000

2 000

1 800

1 700

(1)


min-1


NTB AS WS GS

d D Dw s B rs min Ci Ce


C

N


C0

N

D

Dw

d i e

C C

S

De1

2

dE12

B

r

dDb

12 D d

B

r

B12

F


THRUST BEARINGS



Shaftdia.

mm

Thrust roller bearing

Mass (Ref.)

g



10

12

15

17

20

25

30

35

40

45

50

55

60

65

AZ 10249

AZ 12269

AZ 15289

AZ 17309

AZ 203510

AZ 254211

AZ 304711AZ 305216

AZ 355212AZ 356218

AZ 406013AZ 406819

AZ 456514AZ 457320

AZ 507014AZ 507822

AZ 557816AZ 559025

AZ 608517AZ 609526AZ 6013026

AZ 659018AZ 6510027

AZK 10243.5

AZK 12263.5

AZK 15283.5

AZK 17303.5

AZK 20354.5

AZK 25425

AZK 30475AZK 30527.5

AZK 35525AZK 35627.5

AZK 40606AZK 40689

AZK 45656AZK 45739

AZK 50706AZK 507811

AZK 55786AZK 559011

AZK 60857.5AZK 609511AZK 6013010

AZK 65907.5AZK 6510011

WS 1024

WS 1226

WS 1528

WS 1730

WS 2035

WS 2542

WS 3047WS 3052

WS 3552WS 3562

WS 4060WS 4068

WS 4565WS 4573

WS 5070WS 5078

WS 5578WS 5590

WS 6085WS 6095WS 60130

WS 6590WS 65100

GS 1024

GS 1226

GS 1528

GS 1730

GS 2035

GS 2542

GS 3047GS 3052

GS 3552GS 3562

GS 4060GS 4068

GS 4565GS 4573

GS 5070GS 5078

GS 5578GS 5590

GS 6085GS 6095GS 60130

GS 6590GS 65100

24.6

26.5

28

30.5

45.5

70

79 160

99 260

139 310

169 360

185 430

275 725

345 7702 090

380 860

8.6

8.7

9.4

10.1

17.9

28

31 70

36 98

54132

62144

68194

89275

135290790

132310

8

8.9

9.3

10.2

13.8

21

24 45

31.5 81

42.5 89

53.5108

58.5118

93225

105240650

124275

Mass (Ref.)

g

Inner ring Outer ring Mass (Ref.)

g


d

10

12

15

17

20

25

3030

3535

4040

4545

5050

5555

606060

6565

D

24

26

28

30

35

42

4752

5262

6068

6573

7078

7890

8595

130

90100

rs min Ci Ce

21

23

25

27

33

39

4449

4958

5764

6269

6774

7585

8190

119

8695

21 13

23 16

25 18

27 20

33 23

39 28

4448

3336

4957

3943

5764

4446

6269

4951

6773

5456

7584

6063

8189

119

666880

8694

7173

8 990 19 100

23 900

23 900

28 600

48 700

60 700

81 00095 700

91 100135 000

133 000195 000

133 000227 000

148 000232 000

192 000332 000

224 000332 000634 000

247 000379 000

10 400

10 200

11 400

19 000

22 700

27 40038 400

29 10047 900

41 70068 700

40 80075 700

43 30084 300

51 700108 000

64 600106 000158 000

68 300116 000

18 000

16 000

14 000

13 000

11 000

9 000

8 0007 500

7 0006 500

6 0005 500

5 5005 000

5 0004 500

4 5004 000

4 0004 0003 000

4 0003 500

(1)


DaMax.

daMin.


C

N


C0

N


min-1T dc Dc Dw B

9 10.04 23.6 3.5 2.75 0.3 13

15

17

19

22

28

3335

3842

4445

4950

5455

5963

656879

7073

0.3

0.3

0.3

0.3

0.6

0.6 0.6

0.6 1

0.6 1

0.6 1

0.6 1

0.6 1

1 1 1.5

1 1

2.75

2.75

2.75

2.75

3

3 4.25

3.5 5.25

3.5 5

4 5.5

4 5.5

5 7

4.75 7.5 8

5.25 8

3.5

3.5

3.5

4.5

5

5 7.5

5 7.5

6 9

6 9

6 11

6 11

7.5 11 10

7.5 11

25.6

27.6

29.6

34.6

41.6

46.551.5

51.561.5

59.567.5

64.572.5

69.577.5

77.589.5

84.594.5

129.5

89.599.5

12.04

15.04

17.04

20.04

25.05

30.0530.05

35.0535.05

40.0540.05

45.0545.05

50.0550.05

55.0555.05

60.0560.0560.05

65.0565.05

9

9

9

10

11

1116

1218

1319

1420

1422

1625

172626

1827


AZ AZK WS GS

da Da

B

r

dDb

12 D d

B

r

B12

D

T

d d D

B12

b12

r

r

D d

icc

C C

Dw

e

F


THRUST BEARINGS



Shaftdia.

mm


Mass (Ref.)

g



70

75

80

85

90

100

110

120

130

AZ 709518AZ 7010527AZ 7014026

AZ 7510019AZ 7511027

AZ 8010519AZ 8011528AZ 8015026

AZ 8511019AZ 8512531

AZ 9012022AZ 9013535AZ 9016026

AZ 10013525AZ 10015038AZ 10019039

AZ 11014525AZ 11016040AZ 11020039

AZ 12015525AZ 12017542AZ 12022039

AZ 13017030AZ 13018542AZ 13023039

AZK 70957.5AZK 7010511AZK 7014010

AZK 751007.5AZK 7511011

AZK 801057.5AZK 8011511AZK 8015010

AZK 851107.5AZK 8512512

AZK 901209AZK 9013514AZK 9016010

AZK 10013511AZK 10015015AZK 10019015

AZK 11014511AZK 11016017AZK 11020015

AZK 12015511AZK 12017518AZK 12022015

AZK 13017012AZK 13018518AZK 13023015

WS 7095WS 70105WS 70140

WS 75100WS 75110

WS 80105WS 80115WS 80150

WS 85110WS 85125

WS 90120WS 90135WS 90160

WS 100135WS 100150WS 100190

WS 110145WS 110160WS 110200

WS 120155WS 120175WS 120220

WS 130170WS 130185WS 130230

GS 7095GS 70105GS 70140

GS 75100GS 75110

GS 80105GS 80115GS 80150

GS 85110GS 85125

GS 90120GS 90135GS 90160

GS 100135GS 100150GS 100190

GS 110145GS 110160GS 110200

GS 120155GS 120175GS 120220

GS 130170GS 130185GS 130230

420 905 2 250

465 960

495 1 060 2 500

530 1 460

790 2 040 2 710

1 190 2 720 5 960

1 350 3 220 6 400

1 450 4 020 7 730

2 180 4 300 8 240

156 325 890

159 340

171 370 920

190 510

290 750 1 000

490 980 2 120

590 1 320 2 280

630 1 640 2 730

860 1 760 2 940

132 290 680

153 310

162 345 790

170 475

250 645 855

350 870 1 920

380 950 2 060

410 1 190 2 500

660 1 270 2 650

Mass (Ref.)

g


g


707070

7575

808080

8585

909090

100100100

110110110

120120120

130130130

95105140

100110

105115150

110125

120135160

135150190

145160200

155175220

170185230

182726

1927

192826

1931

223526

253839

254039

254239

304239

9199

129

96104

101109139

106118

115128149

129142177

139153187

149167206

163177216

767890

8183

8688

100

9195

97101110

108113120

118121130

128133142

140143152

72 000114 000169 000

71 100123 000

74 500122 000180 000

77 800145 000

99 700181 000189 000

136 000219 000333 000

142 000282 000388 000

149 000313 000415 000

176 000333 000440 000

269 000379 000713 000

269 000427 000

292 000427 000792 000

314 000513 000

390 000626 000871 000

522 000796 000

1 420 000

569 0001 030 0001 770 000

617 0001 160 0001 980 000

741 0001 290 0002 180 000

3 5003 5003 000

3 5003 000

3 0003 0002 500

3 0003 000

3 0002 5002 500

2 5002 5002 000

2 5002 0002 000

2 0002 0001 800

2 0001 9001 700

(1)



min-1

70.05 70.05 70.05

94.5 104.5 139.5

7.51110

5.25 8 8

1 1 1.1

757889

8083

858899

9095

97100109

108112119

118120129

128132141

140142151

91100129

96105

101110139

106119

116129149

130143179

140154188

150168207

164178217

1 1

1 1 1.5

1 1

1 1.1 1.5

1 1.1 1.5

1 1.1 2

1 1.1 2.1

1 1.5 2.1

5.75 8

5.75 8.5 8

5.75 9.5

6.5 10.5 8

7 11.5 12

7 11.5 12

7 12 12

9 12 12

7.511

7.51110

7.512

91410

111515

111715

111815

121815

99.5 109.5

104.5 114.5 149.5

109.5 124.5

119.5 134.5 159.5

134.5 149.5 189.3

144.5 159.5 199.3

154.5 174.5 219

169.5 184.5 229

75.05 75.05

80.05 80.05 80.05

85.05 85.05

90.05 90.05 90.05

100.05100.05100.1

110.1110.1110.1

120.1120.1120.1

130.1130.1130.1


AZ AZK WS GS

d D rs min Ci CeDa

Max.da

Min.


C

N


C0

NT dc Dc Dw B

da Da

B

r

dDb

12 D d

B

r

B12

D

T

d d D

B12

b12

r

r

D d

icc

C C

Dw

e

F


THRUST BEARINGS


Shaftdia.

mm


Mass (Ref.)

g



140

150

160

170

180

190

200

220

240

260

280

AZ 14018031AZ 14019542AZ 14024039

AZ 15019031AZ 15020542AZ 15025039

AZ 16020031AZ 16027039

AZ 17023045AZ 17028039

AZ 18024045AZ 18031039

AZ 19025548AZ 19032039

AZ 20026548AZ 20034039

AZ 22029050AZ 22036052

AZ 24031554AZ 24038052

AZ 26034055AZ 26042080

AZ 28044080

WS 140180WS 140195WS 140240

WS 150190WS 150205WS 150250

WS 160200WS 160270

WS 170230WS 170280

WS 180240WS 180310

WS 190255WS 190320

WS 200265WS 200340

WS 220290WS 220360

WS 240315WS 240380

WS 260340WS 260420

WS 280440

GS 140180GS 140195GS 140240

GS 150190GS 150205GS 150250

GS 160200GS 160270

GS 170230GS 170280

GS 180240GS 180310

GS 190255GS 190320

GS 200265GS 200340

GS 220290GS 220360

GS 240315GS 240380

GS 260340GS 260420

GS 280440

2 4104 5608 680

2 5604 8409 140

2 71010 800

6 22011 300

6 54014 600

8 06015 000

8 43017 200

10 40024 000

13 20026 500

15 40051 600

54 600

9201 8603 100

9801 9803 260

1 0303 840

2 4204 020

2 5405 200

3 1005 280

3 2506 120

4 2808 000

5 5209 440

6 60018 200

19 200

7451 3502 790

7901 4302 940

8403 480

1 9003 640

2 0004 700

2 4804 860

2 5905 540

3 0608 000

3 8408 530

4 40016 700

17 700

Mass (Ref.)

g


g


AZK 26034025AZK 26042030

AZK 28044030

AZK 14018012AZK 14019518AZK 14024015

AZK 15019012AZK 15020518AZK 15025015

AZK 16020012AZK 16027015

AZK 17023019AZK 17028015

AZK 18024019AZK 18031015

AZK 19025520AZK 19032015

AZK 20026520AZK 20034015

AZK 22029022AZK 22036020

AZK 24031524AZK 24038020


140140140

150150150

160160

170170

180180

190190

200200

220220

240240

260260

280

180195240

190205250

200270

230280

240310

255320

265340

290360

315380

340420

440

314239

314239

3139

4539

4539

4839

4839

5052

5452

5580

80

173187226

183197236

193255

220265

230293

244303

254322

278342

302362

326400

420

150153162

160163172

170184

184194

194205

206215

216228

237247

257267

279291

311

184 000353 000435 000

181 000349 000459 000

189 000519 000

406 000543 000

426 000619 000

470 000647 000

465 000710 000

557 000943 000

695 000977 000

739 0001 430 000

1 420 000

798 0001 420 0002 180 000

798 0001 420 0002 380 000

855 0002 850 000

1 730 0003 070 000

1 870 0003 710 000

2 080 0003 980 000

2 080 0004 580 000

2 530 0005 520 000

3 250 0005 910 000

3 510 0007 490 000

7 490 000

1 9001 8001 600

1 8001 7001 500

1 7001 400

1 5001 300

1 4001 200

1 3001 200

1 3001 100

1 3001 000

1 1001 000

1 000900

800

(1)



min-1

140.1140.1140.1

179.5 194.5 239

121815

9.5 12 12

1 1.5 2.1

150152161

160162171

170183

183193

193204

205214

215227

236246

256266

278289

309

174188227

184198237

194256

221266

231294

245304

255323

280343

304363

328402

422

1 1.5 2.1

1 3

1.5 3

1.5 3

2 4

2 4

2 4

2 4

2.1 5

5

9.5 12 12

9.5 12

13 12

13 12

14 12

14 12

14 16

15 16

15 25

25

121815

1215

1915

1915

2015

2015

2220

2420

2530

30

189.5 204.5 249

199.5 269

229 279

239 308

254 318

264 338

289 358

314 378

339 418

438

150.1150.1150.1

160.1160.1

170.1170.1

180.1180.1

190.1190.1

200.15200.15

220.15220.15

240.15240.15

260.15260.15

280.15


AZ AZK WS GS

d D rs min Ci CeD a

Max.d a

Min.


C

N


C0

NT d c D c Dw B

da Da

B

r

dDb

12 D d

B

r

B12

D

T

d d D

B12

b12

r

r

D d

icc

C C

Dw

e

G

G1 G2

Needle Roller Bearings with Thrust Ball Bearing

Needle Roller Bearings with Thrust Roller Bearing

Needle Roller Bearings with Angular Contact Ball Bearing

Needle Roller Bearings with Three-point Contact Ball Bearing

Structure and FeaturesIKO Combined Type Needle Roller Bearings are com-binations of a radial bearing and a thrust bearing. Caged needle roller bearings are used as radial bear-ings and thrust ball bearings or thrust roller bearings are used as thrust bearings. They are compact and very economical, and can be subjected to radial loads and axial loads simultaneously.They are widely used for machine tools, textile machinery, and industrial machinery.

Structures of Combined Type Needle Roller Bearings

Dust cover

Thrust ball bearingBearing ring for thrust bearing

Inner ring

Radial needle roller bearing

Radial needle roller bearing


Needle roller cage

Needle roller cage

Inner ring(B)

Ball cage (Angular contact type)

Ball cage (3-point contact type)

Bearing ring for thrust bearing

Outer ring

Outer ring

Outer ring

Outer ring

Inner ring(A)

Inner ring

Inner ring

TypesThe types of Combined Type Needle Roller Bearings shown in Table 1 are available.


Type

With dust cover

NBX … Z NBXI … ZNAX … Z NAXI … ZNBX NBXINAX NAXI

Combined with thrust roller bearing

Combined with thrust ball bearing

Without inner ring With inner ringWithout inner ring With inner ring


Type

Model code NATBNATA

Combined with three-point contact ball bearing

Combined with angular contact ball bearing

Needle Roller Bearings with Thrust Ball Bearing

In this series, needle roller bearings are combined with thrust ball bearings to receive thrust loads.In bearings with a dust cover, the dust cover is formed from a thin steel plate and fixed to a groove cut on the outer cylindrical surface of the outer ring collar. The cover forms a labyrinth with the thrust raceway ring, and is therefore effective in preventing leakage of grease and penetration of dust and dirt.In the case of bearings without an inner ring, the toler-

ances of roller set bore diameter Fw are shown in Table 14 on page A33. Therefore, the required radial internal clearances can be selected by combining the bearings with shafts that have been heat-treated and finished by grinding as shown in Table 23 on page A42 and Table 26 on page A44.

G

G3 G41N=0.102kgf=0.2248lbs.1mm=0.03937inch


NAXI 17

Type of bearing

30


Example 1

Example 2 Model code Dimensions

NATA 59

Type of bearing

05

Z P6

Supplemental code


Bearing bore diameter（17mm）

Dimension series


With dust cover

Accuracy class(Class 6)

Assembled bearing width（30mm）

The identification number of Combined Type Needle Roller Bearings consists of a model code, dimen-sions, any supplemental codes and a classification symbol. Some examples are shown below.

Identification NumberNeedle Roller Bearings with Thrust Roller Bearing

In this series, needle roller bearings are combined with thrust roller bearings to receive thrust loads.Their axial load ratings are greater than those of bear-ings that are combined with thrust ball bearings. Also, elastic deformation of the rolling contact surfaces under load is minimal. Furthermore, the thrust bear-ing section is finished to high accuracy, and therefore high rotational accuracy is obtained in the case of both vertical and horizontal shafts.Like the needle roller bearings with thrust ball bearing, this series also includes bearings with a dust cover and bearings with an inner ring.

Needle Roller Bearings with Angular Con-tact Ball Bearing

In this series, caged needle roller bearings are com-bined with angular contact ball bearings to receive thrust loads. These bearings conform to the interna-tional dimension series #59, which is based on the ISO Standard. They can withstand heavy radial loads and unidirectional axial loads simultaneously.When the axial load exceeds 25% of the radial load, the radial load will be induced in the angular contact ball bearing, and bearing life will be affected. The relationship between the two loads must therefore be taken into careful consideration.

Needle Roller Bearings with Three-point Contact Ball Bearing

These bearings can withstand heavy radial loads and bi-directional axial loads at the same time during high-speed rotation.Since the non-interchangeable inner rings are sepa-rated at the center of the ball raceway surface, they must be firmly tightened against the shaft in the axial direction. The axial clearance of this bearing is 0.1〜0.3 mm, and like NATA59, the axial load should not exceed 25% of the radial load.

AccuracyDimensional accuracy and rotational accuracy of Combined Type Needle Roller Bearings are based on Table 2 below and Tables 12 and 13 on page A31. The tolerances for the smallest single roller set bore diameter of bearings without inner ring are based on Table 14 on page A33. Thickness variations of thrust rings of NAX(I) and NBX(I) are based on Table 2.4 on page F5.Bore diameter of the small width inner ring of NATB59 is made for a transition fit with k5 tolerance shaft.

Fig.1 shows mounting examples of Combined Type Needle Roller Bearings. When applying preload to the NAX and NBX models, it is recommended that thrust raceway rings are not tightened directly with nuts, but are tightened using springs as shown in Fig. 2.Mounting two NATA models symmetrically allows them to be subjected to two-way axial loads. When mounting these models, an axial clearance of 0.2〜0.3 mm should be provided in the angular contact ball bearings so that radial loads are not applied to the angular contact ball bearings.Dimensions related to mounting should be based on the table of dimensions.

Mounting

FitThe recommended fits for Combined Type Needle Roller Bearings are shown in Table 3.

ClearanceCombined Type Needle Roller Bearings are manufac-tured to have the radial internal clearance CN shown in Table 18 on page A37.

Rating LifeIn Combined Type Needle Roller Bearings, caged needle roller bearings are subjected to radial loads while thrust bearings receive axial loads. Therefore, it is necessary to calculate their lives respectively (page A17).

LubricationGrease is not prepacked in Combined Type Needle Roller Bearings, so perform proper lubrication for use. Operating without lubrication will increase the wear of the rolling contact surfaces and shorten the bearing life.


Fig.2 Mounting example when applying preload

Table 2 TolerancesItem

Type ofbearing

NAX(I)(1)

NBX(I)(1)

NATB59

Bore dia. of bearing ring for thrust bearing

Assembled bearing width

Bearing height of thrust bearing

Width of inner ring

di E7

　 0− 0.25

　 0− 0.20

　 0− 0.3

L

H

B

Dimension symbol

ToleranceDimension

unit: mm

Note(1)　Also applicable to bearings with dust cover

Table 3 Recommended fitsItem

Type of bearing

NAX(I)(1)NBX(I)(1)

NATA59NATB59

h5，k5

k5 K6，M6

M6(2)k5(2)

Housing bore

Tolerance class

Shaft


Notes(1)　 The housing bore for the thrust bearing must be machined to be more than 0.5 mm larger than the out-side diameters D1 and D2 to ensure that it does not incur radial loads.

(2)　 If the fit is made tighter than specified in this table, radial loads will act upon the thrust bearing, limiting its function.

Oil HoleThe outer ring of Combined Type Needle Roller Bearings has an oil groove and an oil hole. When outer rings with multiple oil holes or inner rings with oil hole(s) are required, please contact IKO.

G


COMBINED TYPE NEEDLE ROLLER BEARINGS


Needle Roller Bearings with Thrust Ball Bearing Needle Roller Bearings with Thrust Roller Bearing

Without Inner RingWithout Inner Ring

Notes(1)　　 Minimum allowable value of chamfer dimension r 　　 (2)　　 Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 70% of this value is allowable in the

NAX series, and a maximum of 25% of this value is allowable in the NBX series.Remarks1.　The outer ring has an oil groove and an oil hole. 2.　No grease is prepacked. Perform proper lubrication.

Shaft dia.

mm

With dust cover


10

12

15

17

20

25

30

35

40

45

50

60

70

Mass (Ref.)

g

Mass (Ref.)

g

With dust cover Mass (Ref.)

g

NAX 1023

NAX 1223

NAX 1523

NAX 1725

NAX 2030

NAX 2530

NAX 3030

NAX 3530

NAX 4032

NAX 4532

NAX 5035

NAX 6040

NAX 7040

38.5

43.5

47.5

54

85.5

131

145

169

219

264

287

417

555

NBX 1523

NBX 1725

NBX 2030

NBX 2530

NBX 3030

NBX 3530

NBX 4032

NBX 4532

NBX 5035

54

61

94

143

160

186

240

293

315

501

NBX 1523Z

NBX 1725Z

NBX 2030Z

NBX 2530Z

NBX 3030Z

NBX 3530Z

NBX 4032Z

NBX 4532Z

NBX 5035Z

55

63

97.5

147

166

193

248

302

325

538

NAX 1023Z

NAX 1223Z

NAX 1523Z

NAX 1725Z

NAX 2030Z

NAX 2530Z

NAX 3030Z

NAX 3530Z

NAX 4032Z

NAX 4532Z

NAX 5035Z

NAX 6040Z

40

45.5

48.5

56

89

135

151

176

227

273

297

454

606

Mass (Ref.)

g

NAX

NBX 6040

NBX 6040Z

NAX 7040Z

D DFwd i

lHL

r

r

1

1

Fw

10

12

1515

1717

2020

2525

3030

3535

4040

4545

5050

6060

70

19

21

2424

2626

3030

3737

4242

4747

5252

5858

6262

7272

85

24 25

27

2929

3131

3636

4343

4848

5353

6161

66.566.5

71.571.5

86.586.5

96.5

26

2828

3030

3535

4242

4747

5252

6060

6565

7070

8585

95

23

23

2323

2525

3030

3030

3030

3030

3232

3232

3535

4040

40

10 18 8 230

9 250

12 30012 300

12 90012 900

17 60017 600

20 00020 000

25 10025 100

26 90026 900

29 40029 400

31 00031 000

42 20042 200

47 50047 500

55 500

10 000

9 670

9 930 10 200

10 80011 400

14 20019 000

19 60022 700

20 40027 400

21 20029 100

26 90041 700

27 90040 800

28 80043 300

41 40064 600

43 100

9 190

11 200

14 90014 900

16 30016 300

25 40025 400

32 10032 100

40 10040 100

46 20046 200

54 10054 100

60 20060 200

83 40083 400

103 000103 000

120 000

11 100

11 100

12 20023 900

14 50028 600

19 70048 700

29 70060 700

33 60081 000

37 60091 100

50 000133 000

55 100133 000

60 100148 000

89 700224 000

101 000

9 500

9 000

8 50014 000

8 50013 000

7 50011 000

7 0009 000

6 5008 000

6 0007 000

5 5006 000

5 0005 500

4 5005 000

4 0004 000

3 500

20

2326

2528

2933

3540

4045

4550

5257

5762

6267

7582

85

12

1515

1717

2020

2525

3030

3535

4040

4545

5050

6060

70

9 6.5

6.5

6.5 6.5

8 8

10.5 10.5

9.5 9.5

9.5 9.5

9 9

10 10

9 9

10 10

12 12

11

0.3

0.3

0.30.3

0.30.3

0.30.3

0.60.6

0.60.6

0.60.6

0.60.6

0.60.6

0.60.6

11

1

9

99

99

1010

1111

1111

1212

1313

1414

1414

1717

18

H l1 rs min d iD D1 D2 L(1)


daMin.mm

Basic dynamic load rating C

Basic static load ratingC0


min-1


Radial

N

Axial

N

Radial

N

Axial

N

NAX … Z NBX NBX … Z

D2

D DFwd i1

lHL

r

r

1

D2

da

G




Needle Roller Bearings with Thrust Ball Bearing Needle Roller Bearings with Thrust Roller Bearing

With Inner RingWith Inner Ring

Notes(1)　　 Minimum allowable value of chamfer dimension r or r1 　　 (2)　　 Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 70% of this value is allowable in the

NAXI series, and a maximum of 25% of this value is allowable in the NBXI series.Remarks1.　The outer ring has an oil groove and an oil hole. 2.　 No grease is prepacked. Perform proper lubrication.

Shaft dia.

mm

With dust cover


7

9

12

14

17

20

25

30

35

40

45

50

60

Mass (Ref.)

g

Mass (Ref.)

g

With dust cover Mass (Ref.)

g

43.5

49.5

55.5

63.5

99

159

179

208

265

315

358

750

45

51.5

56.5

65.5

103

163

185

215

273

324

368

801

62

70.5

108

171

194

225

286

344

386

63

72.5

111

175

200

232

294

353

396

NBXI 1223Z

NBXI 1425Z

NBXI 1730Z

NBXI 2030Z

NBXI 2530Z

NBXI 3030Z

NBXI 3532Z

NBXI 4032Z

NBXI 4535Z

NAXI 723Z

NAXI 923Z

NAXI 1223Z

NAXI 1425Z

NAXI 1730Z

NAXI 2030Z

NAXI 2530Z

NAXI 3030Z

NAXI 3532Z

NAXI 4032Z

NAXI 4535Z

Mass (Ref.)

gd

7

9

1212

1414

1717

2020

2525

3030

3535

4040

4545

60

D

19

21

2424

2626

3030

3737

4242

4747

5252

5858

6262

85

D1

24

26

2828

3030

3535

4242

4747

5252

6060

6565

7070

95

NAXI

NAXI 6040Z

582

NAXI 5040Z

619

666

NBXI 5040Z

703

5050

7272

8585

NAXI 723

NAXI 923

NAXI 1223

NAXI 1425

NAXI 1730

NAXI 2030

NAXI 2530

NAXI 3030

NAXI 3532

NAXI 4032

NAXI 4535

NAXI 5040

NAXI 6040

NBXI 1223

NBXI 1425

NBXI 1730

NBXI 2030

NBXI 2530

NBXI 3030

NBXI 3532

NBXI 4032

NBXI 4535

NBXI 5040

D DFwd di

lHL

Br

r

r

1

1

1

25

27

2929

3131

3636

4343

4848

5353

6161

66.566.5

71.571.5

86.586.5

96.5

23

23

2323

2525

3030

3030

3030

3030

3232

3232

3535

4040

40

18 8 230

9 250

12 30012 300

12 90012 900

17 60017 600

20 00020 000

25 10025 100

26 90026 900

29 40029 400

31 00031 000

42 20042 200

47 50047 500

55 500

10 000

9 670

9 93010 200

10 80011 400

14 20019 000

19 60022 700

20 40027 400

21 20029 100

26 90041 700

27 90040 800

28 80043 300

41 40064 600

43 100

9 500 LRT 71016

LRT 91216

LRT 121516LRT 121516

LRT 141717LRT 141717

LRT 172020LRT 172020

LRT 202520LRT 202520

LRT 253020LRT 253020

LRT 303520LRT 303520

LRT 354020LRT 354020

LRT 404520LRT 404520

LRT 455025LRT 455025

LRT 506025LRT 506025

LRT 607025

9 000

8 50014 000

8 50013 000

7 50011 000

7 0009 000

6 5008 000

6 0007 000

5 5006 000

5 0005 500

4 5005 000

4 0004 000

3 500

9 190

11 200

14 90014 900

16 30016 300

25 40025 400

32 10032 100

40 10040 100

46 20046 200

54 10054 100

60 20060 200

83 40083 400

103 000103 000

120 000

11 100

11 100

12 20023 900

14 50028 600

19 70048 700

29 70060 700

33 60081 000

37 60091 100

50 000133 000

55 100133 000

60 100148 000

89 700224 000

101 000

20

2326

2528

2933

3540

4045

4550

5257

5762

6267

7582

85

9

11

1414

1616

1919

2424

2929

3434

3939

4444

4949

5959

68

rs minD2

16

16

16.516.5

1717

20.520.5

20.520.5

20.520.5

2020

2020

2020

2525

25.525.5

25.5

6.5

6.5

6.5 6.5

8 8

10.5 10.5

9.5 9.5

9.5 9.5

9 9

10 10

9 9

10 10

12 12

11

B l1L

9

9

99

99

1010

1111

1111

1212

1313

1414

1414

1717

18

0.3

0.3

0.30.3

0.30.3

0.30.3

0.60.6

0.60.6

0.60.6

0.60.6

0.60.6

0.60.6

11

1

0.2

0.3

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

11

1

H

10

12

1515

1717

2020

2525

3030

3535

4040

4545

5050

6060

70

10

12

1515

1717

2020

2525

3030

3535

4040

4545

5050

6060

70

Fw d i(1)

r1s min(1)


daMin.

db


Basic static load rating C0


min-1


Radial

N

Axial

N

Radial

N

Axial

N


NAXI … Z NBXI NBXI … Z

D2

D DFwd di

lHL

Br

r

r

1

1

1

D2 d da b

G




Needle Roller Bearings with Angular Contact Ball BearingNeedle Roller Bearings with Three-point Contact Ball Bearing

Notes(1)　　 Minimum allowable value of chamfer dimension r 　　 (2)　　 Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remarks1.　The outer ring has an oil groove and an oil hole. 2.　 No grease is prepacked. Perform proper lubrication.

Shaft dia.

mm


15

17

20

25

30

35

40

45

50

55

60

65

70

Angular contact type

NATA 5902

NATA 5903

NATA 5904

NATA 5905

NATA 5906

NATA 5907

NATA 5908

NATA 5909

NATA 5910

NATA 5911

NATA 5912

NATA 5913

NATA 5914

50.5

55.5

111

131

151

250

355

410

420

585

625

665

1 070

Mass (Ref.)

g

Three-point contact type

NATB 5902

NATB 5903

NATB 5904

NATB 5905

NATB 5906

NATB 5907

NATB 5908

NATB 5909

NATB 5910

NATB 5911

NATB 5912

NATB 5913

NATB 5914

53

58.5

115

136

157

260

375

435

445

615

660

710

1 130

Mass (Ref.)

gd

15

17

20

25

30

35

40

45

50

55

60

65

70

C

18

18

23

23

23

27

30

30

30

34

34

34

40

B rs min(1)

20

20

25

25

25

30

34

34

34

38

38

38

45

Fw

20

22

25

30

35

42

48

55

58

63

68

75

80

0.3

0.3

0.3

0.3

0.3

0.6

0.6

0.6

0.6

1

1

1

1

D

28

30

37

42

47

55

62

68

72

80

85

90

100


NATA59

D Fw d

r

r

r

r

C

17

19

22

27

32

39

44

49

54

60

65

70

75

26

28

35

40

45

51

58

64

68

75

80

85

95

7 710

8 220

14 300

15 800

17 700

24 000

30 600

32 600

33 600

39 500

41 800

43 800

56 400

1 900

2 050

3 810

4 300

4 550

4 890

5 350

5 450

5 660

10 400

10 700

11 000

13 500

20 000

18 000

16 000

13 000

11 000

9 500

8 500

7 000

7 000

6 500

6 000

5 500

5 000


da

Min.

Da

Max.


Basic static load rating C0


min-1

Radial

N

Axial

N

Radial

N

Axial

N

10 200

11 500

18 400

22 100

26 800

42 100

60 400

68 500

72 500

74 400

82 200

90 200

127 000

2 920

3 340

6 110

7 520

8 460

9 870

11 800

12 700

13 600

24 700

26 700

28 700

35 000

NATB59

D Fw d

r

r

r

r

CB

D d a

a

D d a

a

H

H1 H2

Inner Rings for Shell Type Needle Roller Bearings

Inner Rings for General Usage

IKO Inner Rings are heat-treated and finished by grinding to a high degree of accuracy. In the case of needle roller bearings, normally, the shafts are heat-treated and finished by grinding, and used as the raceway surfaces. However, when it is impossible to make shaft surfaces according to the specified sur-face hardness or surface roughness, inner rings are used.Inner rings include those for Shell Type Needle Roller Bearings and those for general use and are available in a variety of dimensions. When shafts move axially or seals are used adjacent to bearings, wide inner rings can be selected.Inner rings can also be used economically as bush-ings without requiring any additional machining.


Gentle taper relief

Small chamfer

Gentle taper relief

Small chamfer

Shapes of Inner Rings

TypesFor Inner Rings, the types shown in Table 1 are avail-able.

Table 1.1 Inner Rings for Shell Type Needle Roller Bearings

Series Model codes of assembled bearings

Metric series

Inch series

IRT

IRB

TA … Z，TLA … ZTAM，TLAM，YT，YTLBA … Z，BHA … ZBAM，BHAM，YB，YBH

Remark　 For Inner Rings for Shell Type Needle Roller Bearings with Seal, please consult IKO.

Table 1.2 Inner Rings for General Usage

Series Model codes of assembled bearings

Metric series

Inch series

LRT

LRTZ

LRB

LRBZ … B

RNA 49，RNA 69RNA 48，TAF，TRRNAF，NAX，NBXRNA 49 … UU，RNA 69 … UUGTRBR

BR … UU

H

H3 H41N=0.102kgf=0.2248lbs.1mm=0.03937inch

Identification numberThe identification number of Inner Rings consists of a model code and dimensions. An example is shown below.


LRT 20 2024


Type of inner ring

Inner ring width（20mm）

Outside diameter of inner ring（24mm）

Bore diameter of inner ring（20mm）

AccuracyDimensional accuracy of Inner Rings is based on Table 2. Inner Rings for Shell Type Needle Roller Bearings are manufactured so that exact radial internal clearances can be obtained when assembled with Shell Type Needle Roller Bearings. Inner Rings for General Usage produce CN clearance when used in the assembled bearings shown in Table 1.2. LRB and LRBZ … B models produce the radial internal clear-ances shown in Table 4 on page D5. When clearances other than CN clearance or accura-cy other than Class 0 are required, please consult IKO.

Table 6 Tolerances of outside diameters for LRT and LRTZ (When the clearance is CN clearance)

dBore diameter of inner ring mm

FOutside diameter of inner ring　mm

3＜ F ≦ 6 6＜ F ≦ 10 10＜ F ≦ 18 18＜ F ≦ 30 30＜ F ≦ 50 50＜ F ≦ 80

Over Incl. High Low High Low High Low High Low High Low High Low−243040506580

100120140160180200225250280315355400450

243040506580

100120140160180200225250280315355400450500

− 10 − 27 − 7 − 23 − 4 − 18＋ 5

0− 4− 9− 19− 5

00

− 12− 12

− 11− 21− 26

0− 10− 10

Table 2 Tolerances for inner ring

Model code Tolerance

IRTLRT，LRTZ

IRBLRBLRBZ … B

JIS Class 0(See the table 12, page A31)

Based on Table 3

Based on Table 4

Remark Tolerances of outside diameter of inner ring are　　　　based on Table 5.

∆dmpSingle plane

mean bore

diameter deviation

∆BsDeviation of a

single inner ring

width

KiaRadial runout of

assembled

bearing inner ring

High Low High Low Max.

00000

000

1010131520

00

− 250− 250− 250− 250− 250

− 13− 13− 13− 13− 13

dNominal inside diameter

of inner ring

mmOver Incl.

2.510183050

1018305080

Table 3 Tolerances of IRB

dNominal inside diameter

of inner ringmm

Over Incl.

−19.05030.16250.80082.550

19.050 30.162 50.800 82.550120.650

∆dmpSingle plane

mean bore

diameter deviation

∆BsDeviation of a

single inner ring

width

High Low High Low

KiaRadial runout of

assembled

bearing inner ring

Max.

00000

000

1013152025

00

− 130− 130− 130− 130− 130

− 10− 13− 13− 15− 20

Table 4 Tolerances of LRB,LRBZ…B

unit: μ m

unit: μ m

FitThe recommended fits between Inner Rings and shafts are shown in Table 22 on page A42.

Oil Hole The number of oil holes is shown in Table 8.When Inner Rings with an oil hole are especially required for a model without an oil hole, attach an "OH" to the end of the identification number when ordering.Example: LRT 202420 OH For Inner Rings with multiple oil holes, please consult IKO.

Table 5 Tolerances of outside diameter of inner ring

Model code Tolerance

IRT

IRB

LRT，LRTZ

LRB，LRBZ … B

g5

0〜− 13

Based on Table 6

Based on Table 7

unit: μ m

Table 7 Tolerances of outside diameters of LRB and LRBZ … BNominal outside diameter

of inner ringmm

Over Incl.

Tolerance

High Low

−18.03425.908

30.22635.05250.038

80.010100.076

18.03425.90830.226

35.05250.03880.010

100.076102.108

− 13− 18− 23

− 23− 25− 28

− 32− 37

− 23− 30− 36

− 38− 41− 46

− 56− 66

unit: μ m

Table 8 Number of oil holes

　　　 Bearing typeNumber

of oil holes

For Shell Type Needle Roller Bearings

For General Usage

Metric series

Inch series

Metric series

Inch series

IRT

IRB

LRT

LRTZ

LRB d≦ 76.200

76.200＜d LRBZ … B

0

0

0

0

1

2

1

Bore diameter of inner ring d mm

Remark　 Inner rings with an oil hole are provided with an oil groove.

FOutside diameter of inner ring　mm

80＜ F ≦ 120 120＜ F ≦ 180 180＜ F ≦ 250 250＜ F ≦ 315 315＜ F ≦ 400 400＜ F ≦ 500

High Low High Low High Low High Low High Low High Low

dBore diameter ofinner ring mm

Over Incl.−243040506580

100120140160180200225250280315355400450

243040506580

100120140160180200225250280315355400450500

unit: μ m

− 107− 127− 182

− 68− 83

− 128

− 87− 107

− 54− 69

− 46− 66

− 25− 40

− 22− 37

− 7− 17

− 14− 14

− 4− 27− 32

− 17

− 55 − 86

− 142− 152

− 122− 202− 222

− 172

− 52− 27

H




Note(1)　 Minimum allowable value of chamfer dimension rRemark　No oil hole is provided.

Shaft dia.

mm

Mass (Ref.)


g d F B rs min Min. Max.TA … Z(TAM)

TLA … Z(TLAM)

YTYTL

7

8

10

12

15



IRT 1012IRT 1012-2IRT 1016-2IRT 1020-2IRT 1010-1IRT 1012-1IRT 1015-1IRT 1020-1IRT 1025-1

IRT 1212IRT 1216IRT 1222IRT 1212-1IRT 1216-1IRT 1220-1IRT 1222-1IRT 1215-2IRT 1220-2IRT 1225-2

IRT 1512IRT 1513

3.2 3.9 4.8

777

888

101010101010101010

12121212121212121212

1515

101010

121212

131414141515151515

15151516161616171717

1818

10.512.515.5

10.512.515.5

12.512.516.520.510.512.515.520.525.5

12.516.522.512.516.520.522.515.520.525.5

12.513.5

0.30.30.3

9 9 9

9.7 9.7 9.7

11 11 11

12.7 13 13 13 14 14 14 14 14

14.5 14.5 14.5 15 15 15 15 16 16 16

17.5 17.5

101010

121212121212121212

14141414141414141414

1717

0.30.30.3

0.30.30.30.30.30.30.30.30.3

0.30.30.30.30.30.30.30.30.30.3

0.30.3

5.1 6 7.5

5.2 7.2 9.611.9 7.9 9.411.715.519.3

6.1 8.111 8.511.213.915.213.61822.5

7.5 8.1

TA 1010ZTA 1012ZTA 1015Z

TA 1212ZTA 1215Z

TA 1416ZTA 1420ZTA 1510ZTA 1512ZTA 1515ZTA 1520ZTA 1525Z

TA 1512Z

TA 1616ZTA 1620Z

TA 1715ZTA 1720ZTA 1725Z

TA 1813Z

TLA 1010ZTLA 1012ZTLA 1015Z

TLA 1210ZTLA 1212Z


TLA 1512Z

TLA 1512ZTLA 1516ZTLA 1522ZTLA 1612ZTLA 1616Z

TLA 1622Z

TLA 1812Z

YTL 1210YT 1212

YT 1715

YT 1725

(1)

Boundary dimensions mm

Standard mounting dimension mm

Assembled bearings

d a

INNER RINGS


Shaft dia.

mm

Mass (Ref.)



TLA … Z(TLAM)

YTYTL

15

17

IRT 1515IRT 1516IRT 1517IRT 1519IRT 1520IRT 1525IRT 1516-1IRT 1520-1IRT 1515-2IRT 1520-2

IRT 1525-2IRT 1530-2

IRT 1716IRT 1720

IRT 1730IRT 1716-1IRT 1720-1IRT 1710-2IRT 1715-2IRT 1716-2IRT 1720-2

IRT 1725-2IRT 1730-2

9.3 9.910.511.712.315.213.616.816.421.5

2732

11.113.7

20.515.118.812.418.319.424

3036

15151515151515151515

1515

1717

17171717171717

1717

18181818181819192020

2020

2020

20212122222222

2222

15.516.517.519.520.525.516.520.515.520.5

25.530.5

16.520.5

30.516.520.510.515.516.520.5

25.530.5

0.30.30.30.30.30.30.30.30.30.3

0.30.3

17171717171717171717

1717

17.517.517.517.517.517.518181919

1919

19.519.5

19.5202021212121

2121

1919

19191919191919

1919

0.30.3

0.30.30.30.30.30.30.3

0.30.3

TA 1815Z

TA 1817ZTA 1819ZTA 1820ZTA 1825ZTA 1916ZTA 1920ZTA 2015ZTA 2020ZTA 202820ZTA 2025ZTA 2030Z

TA 2020ZTA 202820ZTA 2030ZTA 2116ZTA 2120ZTA 2210ZTA 2215ZTA 223016ZTA 2220ZTA 223020ZTA 2225ZTA 2230Z

TLA 1816Z

TLA 2020Z

TLA 2030Z

TLA 2016ZTLA 2020Z

TLA 2030Z

TLA 2216ZTLA 2220Z

YT 2015 YT 202820

YT 2025

YT 202820

YT 2116 YT 2120

YT 223016 YT 223020

(1)



Assembled bearings

d a

IRT

F d

B

r

r

d a

H





Shaft dia.

mm

Mass (Ref.)



TLA … Z(TLAM)

YTYTL

20

22

25

28

30

IRT 2016IRT 2020

IRT 2028IRT 2010-1IRT 2015-1IRT 2020-1IRT 2025-1IRT 2026-1IRT 2030-1IRT 2038-1

IRT 2216IRT 2220IRT 2220-1IRT 2230-1

IRT 2520IRT 2530IRT 2515-1IRT 2520-1IRT 2525-1IRT 2526-1IRT 2530-1IRT 2538-1

IRT 2820IRT 2830

IRT 3012IRT 3015

17.522

30.514.3212834.53641.552.5

19.1243755.5

26.54025.53442.54450.564

29.544

24.530.5

TA 243216ZTA 2420ZTA 243220ZTA 2428ZTA 2510ZTA 2515ZTA 2520ZTA 2525Z

TA 2530Z

TA 2616ZTA 2620ZTA 2820ZTA 2830Z

TA 2920ZTA 2930ZTA 3015ZTA 3020ZTA 3025Z

TA 3030Z

TA 3220ZTA 3230Z

TA 3512ZTA 3515Z

TLA 2520Z

TLA 2526Z

TLAW 2538Z

TLA 2820Z

TLA 3020Z

TLA 3026Z

TLAW 3038Z

TLA 3512Z

YT 243216YT 243220

YT 2428YT 2510YT 2515YT 2520YT 2525YTL 2526

YT 2616YT 2620YT 2820

YT 2920

YT 3220

(1)



Assembled bearings

d a

2020

2020202020202020

22222222

2525252525252525

2828

3030

2424

2425252525252525

16.520.5

28.510.515.520.525.526.530.538.5

26262828

2929303030303030

3232

3535

16.520.520.530.5

20.530.515.520.525.526.530.538.5

20.530.5

12.515.5

0.30.3

0.30.30.30.30.30.30.30.3

0.30.30.30.3

0.30.30.30.30.30.30.30.3

0.30.3

0.60.6

2222

2222222222222222

24242424

2727272727272727

3030

3434

23 23

23 24 24 24 24 24 24 24

25 25 27 27

28 28 29 29 29 29 29 29

31 31

34.5 34.5

INNER RINGS


Shaft dia.

mm

Mass (Ref.)



TLA … Z(TLAM)

YTYTL

30

32

35

40

45

IRT 3020IRT 3025IRT 3030

IRT 3220IRT 3230IRT 3215-1IRT 3220-1IRT 3225-1IRT 3230-1IRT 3245-1


IRT 4020IRT 4025IRT 4030IRT 4040


40 50 60

20.525.530.5

20.530.515.520.525.530.545.5

15.520.525.530.540.5

20.525.530.540.5

12.515.520.525.530.540.545.5

0.60.60.6

343434

34.5 34.5 34.5

36.5 36.5 37 37 37 37 37

39.5 39.5 39.5 39.5 39.5

45.5 45.5 45.5 45.5

49.5 49.5 49.5 49.5 49.5 49.5 49.5

36363636363636

3939393939

44444444

49494949494949

0.60.60.60.60.60.60.6

0.60.60.60.60.6

0.60.60.60.6

0.60.60.60.60.60.60.6

42.5 63.5 39.5 52 64.5 77.5 115

35 46.5 58 69 91.5

52.5 65.5 78.5 104

36 44.5 59 73 87.5 116 131

TA 3520ZTA 3525ZTA 3530Z

TA 3720ZTA 3730ZTA 3815ZTA 3820ZTA 3825ZTA 3830ZTAW 3845Z


TA 4520ZTA 4525ZTA 4530ZTA 4540Z


TLA 3520Z

TLA 4020Z

TLA 4520Z

TLA 5020ZTLA 5025Z

YT 3720

YT 4015

YT 4025

YT 4520YT 4525

(1)



Assembled bearings

d a

303030

32323232323232

3535353535

40404040

45454545454545

353535

37373838383838

4040404040

45454545

50505050505050

IRT

F d

B

r

r

d a

H


5050505050505050505050

5555555555556060606060

20.525.530.540.545.550.525.530.540.545.550.5

0.60.60.60.60.60.61.51.51.51.51.5

5454545454545858585858

54.5 54.5 54.5 54.5 54.5 54.5 59 59 59 59 59

52 62 12.5 1.5 60 60.5

55555555

65656565

25.530.545.550.5

1.51.51.51.5

63636363

63.5 63.5 63.5 63.5

60606060

70707070

25.530.540.550.5

1.51.51.51.5

68686868

68.5 68.5 68.5 68.5




Shaft dia.

mm

Mass (Ref.)


gd F B rs min Min. Max.

TA … Z(TAM)

TLA … Z(TLAM)

YTYTL

50

52

55

60

IRT 5020-1IRT 5025-1IRT 5030-1IRT 5040-1IRT 5045-1IRT 5050-1IRT 5025IRT 5030IRT 5040IRT 5045IRT 5050

IRT 5212

IRT 5525IRT 5530IRT 5545IRT 5550

IRT 6025IRT 6030IRT 6040IRT 6050

65 81 96.5 128 144 160 169 205 270 300 335

86

185 220 330 365

200 240 320 395

TA 5520ZTA 5525ZTA 5530ZTA 5540ZTAW 5545ZTAW 5550ZTA 6025ZTA 6030ZTA 6040ZTAW 6045ZTAW 6050Z

TA 6212Z

TA 6525ZTA 6530ZTAW 6545ZTAW 6550Z

TA 7025ZTA 7030ZTA 7040ZTAW 7050Z

TLA 5520ZTLA 5525Z

(1)



Assembled bearings

d a

IRT

INNER RINGS

F d

B

r

r

d a

Note(1)　 Maximum allowable fillet corner radius of shaft Remark　No oil hole is provided.

Shaft dia.

mm(inch)

Mass (Ref.)


g d F B Min. Max. Max. BA … Z(BAM)

BHA … Z(BHAM)

YBYBH

Boundary dimensionsmm(inch)

Standard mounting dimensions mm

Assembled bearings

d a ras max

Shaft dia. 7.938− 15.875mm


7.938（ 516） IRB 58 BA 88Z BHA 88Z YB 88

YB 98YB 108YBH 108YB 912YB 1012YB 108YBH 108YB 1012

YB 1112YB 128YB 1210YB 1212

YB 138YBH 1310YBH 1312

YB 148YB 1412

8 11.313.08 11.7 0.3 7.938（ 5 16） 12.700（ 1 2）

9.525（ 38）

11.112（ 716）

12.700（ 12）

14.288（ 916）

15.875（ 58）

IRB 68IRB 68-1

IRB 612IRB 612-1IRB 78

IRB 712IRB 714IRB 716IRB 86IRB 88IRB 812IRB 88-1IRB 810-1IRB 812-1IRB 814-1IRB 816-1IRB 98IRB 910IRB 912IRB 914IRB 916IRB 920IRB 106IRB 108IRB 1012

BA 98ZBA 108Z

BA 912ZBA 1012ZBA 108Z

BA 1012ZBA 1014ZBA 1016ZBA 116ZBA 118ZBA 1112ZBA 128ZBA 1210ZBA 1212ZBA 1214ZBA 1216ZBA 138ZBA 1310ZBA 1312ZBA 1314ZBA 1316ZBA 1320Z

BA 146ZBA 148ZBA 1412Z

BHA 98ZBHA 108Z

BHA 1012ZBHA 108Z

BHA 1012Z

BHA 1016Z

BHA 118ZBHA 1112Z

BHA 1212Z

BHA 138ZBHA 1310ZBHA 1312Z

BHA 1412Z

8.912.6

13.218.810.1

1517.419.9

8.511.216.715.819.623.527.531

17.321.5263034.543

14.518.928

12.812.8

12.812.814.4

14.414.414.4

16.916.916.916.916.916.916.916.9

191919191919

20.720.720.7

13.0813.08

19.4319.4313.08

19.4322.6025.78

9.9013.0819.4313.0816.2519.4322.6025.78

13.0816.2519.4322.6025.7832.13

9.90 13.0819.43

13.214

13.21414.8

14.814.814.8

16.916.916.917.517.517.517.517.5

19.619.619.619.619.619.6

21.221.221.2

0.30.3

0.30.30.3

0.30.30.3

0.30.30.30.60.60.60.60.6

0.60.60.60.60.60.6

0.60.60.6

9.525（ 3 8） 9.525（ 3 8）

9.525（ 3 8） 9.525（ 3 8）

11.112（ 7 16）

11.112（ 7 16）11.112（ 716）11.112（ 7 16）

12.700（ 1 2）12.700（ 1 2）12.700（ 1 2）12.700（ 1 2）12.700（ 1 2）12.700（ 1 2）12.700（ 1 2）12.700（ 1 2）

14.288（ 916）14.288（ 916）14.288（ 9 16）14.288（ 916）14.288（ 916）14.288（ 9 16）

15.875（ 5 8）15.875（ 5 8）15.875（ 5 8）

22.225（ 7 8）22.225（ 7 8）22.225（ 7 8）

20.638（1316）20.638（1316）20.638（1316）20.638（1316）20.638（1316）20.638（1316）

14.288（ 916）15.875（ 5 8）

14.288（ 916）15.875（ 5 8）

15.875（ 5 8）

15.875（ 5 8）15.875（ 5 8）15.875（ 5 8）

17.462（1116）17.462（1116）17.462（1116）19.050（ 3 4）19.050（ 3 4）19.050（ 3 4）19.050（ 3 4）19.050（ 3 4）

(1)

Inch Series

IRB

dF

B

da

ra

H


Shaft dia. 15.875−63.500mm



Shaft dia.

mm(inch)

Mass (Ref.)


g d F B Min. Max. Max.BA … Z(BAM)

BHA … Z(BHAM)

YBYBH



Assembled bearings

d a ras max

YB 1416

YB 168YBH 168YB 1612YBH 1612

YB 1616YBH 1616

YB 1616YBH 1616

YB 188YB 1812YB 1816

15.875（ 58）17.462

（ 1116）

19.050（ 34）

20.638（ 1316）

22.225（ 78）


IRB 128

IRB 1212

IRB 1214IRB 1216

IRB 1220

IRB 1316

IRB 148IRB 1412IRB 1416IRB 1420

BA 1414ZBA 1416ZBA 1422Z

BA 1510ZBA 1516Z

BA 168Z

BA 1612Z

BA 1614ZBA 1616Z

BA 1620Z

BA 1616Z

BA 188ZBA 1812ZBA 1816ZBA 1820Z

BHA 1416Z

BHA 168Z

BHA 1612Z

BHA 1614ZBHA 1616Z

BHA 1620Z

BHA 1616Z


3337.551.5

25.540.5

22

33

38.543.5

54.5

34

2537.55062.5

20.720.720.7

22.322.3

23.9

23.9

23.923.9

23.9

24.9

27272727

22.6025.7835.30

16.2525.78

13.08

19.43

22.6025.78

32.13

25.78

13.0819.4325.7832.13

21.221.221.2

22.822.8

24.4

24.4

24.424.4

24.4

24.9

27.527.527.527.5

0.60.60.6

0.60.6

0.6

0.6

0.60.6

0.6

0.6

0.60.60.60.6

15.875（ 5 8）15.875（ 5 8）15.875（ 5 8）

17.462（ 1116）17.462（ 1116）

19.050（ 3 4）

19.050（ 3 4）

19.050（ 3 4）19.050（ 3 4）

19.050（ 3 4）

20.638（ 1316）

22.225（ 7 8）22.225（ 7 8）22.225（ 7 8）22.225（ 7 8）

25.400（1 ）

28.575（1 1 8）28.575（1 1 8）28.575（1 1 8）28.575（1 1 8）

22.225（ 7 8）22.225（ 7 8）22.225（ 7 8）

23.812（ 1516）23.812（ 1516）

25.400（1 ）

25.400（1 ）

25.400（1 ）25.400（1 ）

25.400（1 ）

(1)

YB 2010YB 2012YB 2016

25.400（1）

IRB 168IRB 1610IRB 1612IRB 1616IRB 1620IRB 168-1IRB 1610-1IRB 1612-1

BA 208ZBA 2010ZBA 2012ZBA 2016ZBA 2020ZBA 218ZBA 2110ZBA 2112Z

BHA 208Z


28.535.542.5567036.545.554.5

3030303030303030

13.0816.2519.4325.7832.1313.0816.2519.43

30.730.730.730.730.732.132.132.1

0.60.60.60.60.60.60.60.6

25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）

31.750（1 1 4）31.750（1 1 4）31.750（1 1 4）31.750（1 1 4）31.750（1 1 4）33.338（1 516）33.338（1 516）33.338（1 516）

Inch Series

INNER RINGS

IRB


Shaft dia.

mm(inch)

Mass (Ref.)


g d F B Min. Max. Max. BA … Z(BAM)

BHA … Z(BHAM)

YBYBH



Assembled bearings

d a ras max

YB 228YB 2212

YB 2220

YB 2414YB 2416YB 2420

YB 2610

28.575（1 18）

31.750（1 14）

34.925（1 38）

IRB 188IRB 1812IRB 1816IRB 1820IRB 2010IRB 2014IRB 2016IRB 2020IRB 2210IRB 2220

BA 228ZBA 2212ZBA 2216ZBA 2220Z

BA 2410ZBA 2414ZBA 2416ZBA 2420Z

BA 2610ZBA 2620Z

BHA 228ZBHA 2212ZBHA 2216ZBHA 2220Z

31.5 47 62.5 78

43 60 68.5 85.5

47 93.5

33.233.233.233.2

37373737

40.240.2

13.0819.4325.7832.13

16.2522.6025.7832.13

16.2532.13

33.933.933.933.9

37.137.137.137.1

40.240.2

0.60.60.60.6

0.60.60.60.6

0.60.6

28.575（1 1 8）28.575（1 1 8）28.575（1 1 8）28.575（1 1 8）

31.750（1 1 4）31.750（1 1 4）31.750（1 1 4）31.750（1 1 4）

34.925（1 3 8）34.925（1 3 8）

YB 2816

36.512（1 716）IRB 2316 BA 2816Z 99 42.525.78 43.2 0.636.512（1 716）

38.100（1 12）

IRB 2412IRB 2416IRB 2424IRB 248-1IRB 2410-1

BA 2812ZBA 2816ZBA 2824ZBA 308ZBA 3010Z

BHA 2824Z

62 81 121 64 79.5

43.343.343.344.544.5

19.4325.7838.4813.0816.25

43.443.443.445.545.5

0.60.60.611

38.100（1 1 2）38.100（1 1 2）38.100（1 1 2）38.100（1 1 2）38.100（1 1 2）

41.275（1 5 8）41.275（1 5 8）

44.450（1 3 4）

44.450（1 3 4）44.450（1 3 4）44.450（1 3 4）47.625（1 7 8）47.625（1 7 8）

34.925（1 3 8）34.925（1 3 8）34.925（1 3 8）34.925（1 3 8）

38.100（1 1 2）38.100（1 1 2）38.100（1 1 2）38.100（1 1 2）

(1)

41.275（1 58）

IRB 2616IRB 2628

BA 3216ZBAW 3228Z

136235

47.547.5

25.7844.83

48.548.5

11

41.275（1 5 8）41.275（1 5 8）

50.800（2 ）50.800（2 ）

42.862（11116） IRB 2720 BA 3220Z

146 48.532.13 49.5 0.642.862（1 1116）50.800（2 ）

47.625（1 78）

IRB 3016IRB 3024

BA 3416ZBA 3424Z

100149

52.952.9

25.7838.48

52.952.9

0.60.6

47.625（1 7 8）47.625（1 7 8）

53.975（2 1 8）53.975（2 1 8）

57.150（214） IRB 3616 BA 4216Z

183 63.525.78 64.5 157.150（2 1 4） 66.675（2 5 8）

63.500（212）

IRB 4016IRB 4020

BA 4416ZBA 4420Z

131164

68.768.7

25.7832.13

68.868.8

0.60.6

63.500（2 1 2）63.500（2 1 2）

69.850（2 3 4）69.850（2 3 4）

dF

B

da

ra

H



Shaft dia.

mm

Mass (Ref.)


g d F B rs min Min. Max.

5

6

7

8

9

10

12

LRT 5710LRT 5812LRT 5816

LRT 6810LRT 6912LRT 6916LRT 61010

LRT 7910LRT 71012LRT 71012-1LRT 71016

LRT 81011

LRT 91211LRT 91212LRT 91216

LRT 101412LRT 101413

LRT 101416LRT 101420

LRT 121516LRT 121612LRT 121613

LRT 121616LRT 121620

LRTZ 101414

LRTZ 121614

1.4 2.8 3.8

1.7 3.2 4.3 3.9

1.9 3.6 3.6 4.9

2.4

3.1 4.5

6

7 7.5 8.2

911.5

8 8.5 8.5 9.610.513.5

5 5 5

6 6 6 6

7 7 7 7

8

9 9 9

1010101010

121212121212

7 8 8

8 9 910

9101010

10

121212

1414141414

151616161616

10 12 16

10 12 16 10

10 12 12 16

11

11 12 16

12 13 14 16 20

16.5 12 13 14 16 20

0.150.20.2

6.2 6.6 6.6

6.7 7.7 7.7

RNA 495TAF 81512TAF 81516

0.150.20.20.3

7.2 7.6 7.6 8

7.7 8.7 8.7 9.7

RNA 496TAF 91612TAF 91616RNAF 101710

0.150.20.30.2

8.2 8.6 9 8.6

8.7 9.7 9.7 9.7

RNA 497TAF 101712RNAF 102012TAF 101716 NAX 1023

0.2 9.6 9.9 RNA 498

0.30.30.3

111111

11.511.511.5

RNA 499TAF 121912 RNAF 122212TAF 121916 NAX 1223

0.30.30.30.30.3

1212121212

1313131313

RNAF 142612RNA 4900 RNAF 142213RNA 4900 UUTAF 142216TAF 142220 RNAFW142220

0.30.30.30.30.30.3

141414141414

14.51515151515

NAX 1523 NBX 1523RNAF 162812RNA 4901 RNAF 162413RNA 4901 UUTAF 162416TAF 162420 RNAFW162420

(1)



Assembled bearings

d a



INNER RINGS

LRT LRTZ


Shaft dia.

mm

Mass (Ref.)



12

14

15

17

20

LRT 121622

LRT 141717

LRT 151916LRT 151920LRT 152012LRT 152013

LRT 152020

LRT 152023

LRT 152026

LRT 172020LRT 172116LRT 172120LRT 172213

LRT 172216LRT 172223

LRT 172225

LRT 172226LRT 172232

LRT 202416LRT 202420

LRTZ 121623

LRTZ 152014

LRTZ 152020

LRTZ 152024

LRTZ 172214

LRTZ 172224

LRTZ 172225

14.5 15.5

9.5

12.5 16 12 13.5 14.5 21.5 21.5 24 25 28

13.5 14.5 18 15.5 16.5 19 26.5 28 30 30 31 38

16.5 20.5

1212

14

15151515151515151515

171717171717171717171717

2020

1616

17

19192020202020202020

202121222222222222222222

2424

22 23

17

16 20 12 13 14 20.5 20.5 23 24 26

20.5 16 20 13 14 16 23 24 25.5 25.5 26 32

16 20

0.30.3

1414

15 15

RNA 6901RNA 6901 UU

0.3 16 16.5 NAX 1725 NBX 1725

0.30.30.30.30.30.30.30.30.30.3

17171717171717171717

18 18 19 19 19 19 19 19 19 19

TAF 192716TAF 192720RNAF 203212RNA 4902 RNAF 202813RNA 4902 UUTR 203320GTR 203320RNA 6902RNA 6902 UURNAFW 202826

0.30.30.30.30.30.30.30.30.30.30.30.3

191919191919191919191919

19.5 20 20 21 21 21 21 21 21 21 21 21

NAX 2030 NBX 2030TAF 212916TAF 212920RNA 4903 RNAF 223013RNA 4903 UURNAF 223516RNA 6903RNA 6903 UUTR 223425GTR 223425RNAFW 223026RNAFW 223532

0.30.3

2222

23 23

TAF 243216TAF 243220

(1)



Assembled bearings

d a

F d

B

r

r

dF

B

r

r

d a

H



Shaft dia.

mm

Mass (Ref.)



20

22

25

LRT 202516LRT 202517

LRT 202520

LRT 202525

LRT 202526LRT 202530

LRT 202532

LRT 222616LRT 222620LRT 222817

LRT 222830

LRT 252920LRT 252930LRT 253016LRT 253017

LRT 253020LRT 253025

LRT 253026LRT 253030

LRTZ 202518

LRTZ 202520

LRTZ 202525

LRTZ 202531

LRTZ 222818

LRTZ 222831

LRTZ 253018

LRTZ 253025

22 23 24 28

28 35 35 36 40.5 41.5 44

17.5 24 30.5 32 55 55

25 38 28 28.5 29.5 34 42 42 44.5 49

20202020

20202020202020

222222222222

25252525252525252525

25252525

25252525252525

262628282828

29293030303030303030

16 17 18 20.5

20.5 25.5 25.5 26 30 31 32

16 20 17 18 30 31

20 30 16 17 18 20.5 25.5 25.5 26 30

0.30.30.30.3

0.30.30.30.30.30.30.3

22 22 22 22

22 22 22 22 22 22 22

24242424

24242424242424

RNAF 253716RNA 4904 RNAF 253517RNA 4904 UUTR 253820 NAX 2530NBX 2530GTR 253820TR 253825GTR 253825RNAFW 253526RNA 6904RNA 6904 UURNAFW 253732

0.30.30.30.30.30.3

24 24 24 24 24 24

252527272727

TAF 263416TAF 263420RNA 49 / 22RNA 49 / 22 UURNA 69 / 22RNA 69 / 22 UU

0.30.30.30.30.30.30.30.30.30.3

27 27 27 27 27 27 27 27 27 27

28282929292929292929

TAF 293820TAF 293830RNAF 304216RNA 4905 RNAF 304017RNA 4905 UUNAX 3030 NBX 3030TR 304425GTR 304425RNAFW 304026RNA 6905

(1)



Assembled bearings

d a



INNER RINGS


Shaft dia.

mm

Mass (Ref.)



25

28

30

32

LRT 253032

LRT 283217

LRT 283220 LRT 283230

LRT 303516 LRT 303517

LRT 303520

LRT 303526 LRT 303530 LRT 303530-1

LRT 303532

LRT 323720 LRT 323730 LRT 323830

LRT 324020

LRT 324036

LRTZ 253031

LRTZ 283218

LRTZ 283230LRTZ 283231

LRTZ 303518

LRTZ 303530LRTZ 303531

LRTZ 323830

LRTZ 324021

LRTZ 324037

5154

24.5 25.5 28.5

434344

31.5 33.5

35 38.5

525959596164

43.563777769

72.5123130

2525

282828282828

30303030

303030303030

3232323232323232

3030

323232323232

35353535

353535353535

3737383840404040

31 32

17 18 20 30 30.5 31

16 17 18 20

26 30 30.5 30.5 31 32

20 30 30.5 30.5 20 21 36 37

0.30.3

2727

2929

RNA 6905 UURNAFW 304232

0.30.30.30.30.30.3

303030303030

313131313131

RNA 49 / 28RNA 49 / 28 UUTAF 324220RNA 69 / 28 TAF 324230GTR 324530RNA 69 / 28 UU

0.30.30.30.3 0.30.30.30.30.30.3

32323232

323232323232

34343434

343434343434

RNAF 354716RNA 4906 RNAF 354517RNA 4906 UUTAF 354520 NAX 3530NBX 3530RNAFW 354526RNA 6906 TAF 354530TR 354830GTR 354830RNA 6906 UURNAFW 354732

0.30.30.60.60.60.60.60.6

3434363636363636

3636373739393939

TAF 374720TAF 374730TR 385230GTR 385230RNA 49/32RNA 49/32 UURNA 69/32RNA 69/32 UU

(1)



Assembled bearings

d a

LRT LRTZ

F d

B

r

r

dF

B

r

r

d a

H



Shaft dia.

mm

Mass (Ref.)



35

38

40

LRT 354017 LRT 354020

LRT 354030 LRT 354034 LRT 354040 LRT 354220

LRT 354230

LRT 354236

LRT 384320 LRT 384330

LRT 404517 LRT 404520

LRT 404530 LRT 404530-1

LRT 404534 LRT 404540 LRT 404822

LRT 404840

LRTZ 354020

LRTZ 354221

LRTZ 354230

LRTZ 354237

LRTZ 404530

LRTZ 404823

LRTZ 404841

39 46

46 67 78 95 65 67 97 100 120 120

47.5 72

44.5 51

77 77 77 88 105 93 95 165 170

3535

35353535353535353535

3838

4040

404040404040404040

4040

40404040424242424242

4343

4545

454545454548484848

17 20

20.5 30 34 40 20 21 30.5 30.5 36 37

20 30

17 20 30 30.5 30.5 34 40 22 23 40 41

0.30.3

0.60.30.30.30.60.60.60.60.60.6

37 37

39 37 37 37 39 39 39 39 39 39

39 39

39.5 39 39 39 41 41 41 41 41 41

RNAF 405017TAF 405020 RNAF 405520NAX 4032 NBX 4032GTR 405520TAF 405030RNAFW 405034RNAFW 405540RNA 4907RNA 4907 UUTR 425630GTR 425630RNA 6907RNA 6907 UU

0.30.3

40 40

42 42

TAF 435320TAF 435330

0.30.3

0.30.60.60.30.30.60.60.60.6

42 42

42 44 44 42 42 44 44 44 44

44 44

44 44.5 44.5 44 44 47 47 47 47

RNAF 455517TAF 455520 RNAF 456220NAX 4532 NBX 4532TAF 455530TR 455930GTR 455930RNAFW 455534RNAFW 456240RNA 4908RNA 4908 UURNA 6908RNA 6908 UU

(1)



Assembled bearings

d a



INNER RINGS


Shaft dia.

mm

Mass (Ref.)



42

45

50

LRT 424720LRT 424730LRT 424830

LRT 455020LRT 455025

LRT 455030

LRT 455035LRT 455040LRT 455222

LRT 455240

LRT 455520LRT 455540

LRT 505520LRT 505525LRT 505535LRT 505540LRT 505822

LRT 505840

LRT 505845

LRT 506020

LRTZ 424830

LRTZ 455030

LRTZ 455223

LRTZ 455241

LRTZ 505823

LRTZ 505841

LRTZ 505845

5481

100100

5871

909095

1158893

165170120245

6377

110130116118210215235235135

42424242

4545

45454545454545454545

5050505050505050505050

47474848

5050

50505050525252525555

5555555558585858585860

20 30 30.5 30.5

20 25

30.5 30.5 35 40 22 23 40 41 20 40

20 25 35 40 22 23 40 41 45.5 45.5 20

0.30.30.60.6

44444646

46 46 47 47

TAF 475720TAF 475730TR 486230GTR 486230

0.30.3

0.60.60.30.30.6 0.60.60.611

4747

49494747494949495050

49 49

49.5 49.5 49 49 51 51 51 51 54 54

RNAF 506220TAF 506225 NAX 5035NBX 5035TR 506430GTR 506430TAF 506235RNAFW 506240RNA 4909RNA 4909 UURNA 6909RNA 6909 UURNAF 557220RNAFW 557240

0.30.30.30.30.60.60.60.6111

5252525254545454555555

54 54 54 54 57 57 57 57 57 57 59

RNAF 556820TAF 556825TAF 556835RNAFW 556840RNA 4910RNA 4910 UURNA 6910RNA 6910 UUTR 587745GTR 587745RNAF 607820

(1)



Assembled bearings

d a

LRT LRTZ

F d

B

r

r

dF

B

r

r

d a

H



INNER RINGS


Shaft dia.

mm

Mass (Ref.)



50

55

60

65

LRT 506025LRT 506040

LRT 556025LRT 556035LRT 556238

LRT 556325

LRT 556345

LRT 556530LRT 556560

LRT 606825LRT 606825-1

LRT 606835LRT 606845

LRT 607025LRT 607030LRT 607045

LRT 607060

LRT 657225

LRT 657245

LRT 657335

LRTZ 556238

LRTZ 556326

LRTZ 556346

LRTZ 606826

LRTZ 606846

LRTZ 607045

LRTZ 657226

LRTZ 657246

165265

88120190190145150255260220435

150150160210275280195240355360480

145150255265235

5050

55555555555555555555

6060606060606060606060

6565656565

6060

60606262636363636565

6868686868687070707070

7272727273

25.5 40

25 35 38.5 38.5 25 26 45 46 30 60

25 25 26 35 45 46 25.5 30 45.5 45.5 60

25 26 45 46 35

11

55 55

NAX 6040 NBX 6040RNAFW 607840

0.30.31111111.51.5

57 57 60 60 60 60 60 60 63 63

TAF 607225TAF 607235TR 628138GTR 628138RNA 4911RNA 4911 UURNA 6911RNA 6911 UURNAF 658530RNAFW 658560

0.6110.61111.5111.5

11111

64 65 65 64 65 65 65 68 65 65 68

70 70 70 70 70

59 59

59 59 60.5 60.5 61 61 61 61 63.5 63.5

66 66 66 66 66 66 68 68.5 68 68 68.5

70.5 70.5 70.5 70.5 71

TAF 688225RNA 4912RNA 4912 UUTAF 688235RNA 6912RNA 6912 UUNAX 7040RNAF 709030TR 708945GTR 708945RNAFW 709060

RNA 4913RNA 4913 UURNA 6913RNA 6913 UUTAF 739035

(1)



Assembled bearings

d a


LRT LRTZ

F d

B

r

r

dF

B

r

r

d a


Shaft dia.

mm

Mass (Ref.)



65

70

75

80

LRT 657530LRT 657560

LRT 708025LRT 708030LRT 708030-1

LRT 708035LRT 708054

LRT 708060

LRT 758345

LRT 758525LRT 758530LRT 758530-1

LRT 758535LRT 758554

LRT 809025LRT 809030LRT 809030-1

LRT 809035LRT 809054

LRTZ 708031

LRTZ 708055

LRTZ 758345

LRTZ 758531

LRTZ 758555

LRTZ 809031

LRTZ 809055

260520

225275275275310490500560

350350240290290300335520530

255310310315355550560

6565

7070707070707070

757575757575757575

80808080808080

7575

8080808080808080

838385858585858585

90909090909090

30 60

25 30 30 31 35 54 55 60

45.5 45.5 25 30 30 31 35 54 55

25 30 30 31 35 54 55

1.51.5

7373

73.5 73.5

RNAF 759530RNAFW 759560

111.511111.5

7575787575757578

78 78 78.5 78 78 78 78 78.5

TAF 809525RNA 4914RNAF 8010030RNA 4914 UUTAF 809535RNA 6914RNA 6914 UURNAFW 8010060

11111.51111

111.51111

808080808380808080

85858885858585

81 81 83 83 83.5 83 83 83 83

88 88 88.5 88 88 88 88

TR 8310845GTR 8310845TAF 8510525RNA 4915RNAF 8510530RNA 4915 UUTAF 8510535RNA 6915RNA 6915 UU

TAF 9011025RNA 4916RNAF 9011030RNA 4916 UUTAF 9011035RNA 6916RNA 6916 UU

(1)


Assembled bearings

d a


H



Shaft dia.

mm

Mass (Ref.)



85

90

95

LRT 859350

LRT 859526LRT 859530LRT 859536LRT 859545

LRT 8510035

LRT 8510063

LRT 9010026LRT 9010030LRT 9010036LRT 9010050

LRT 9010535

LRT 9010563

LRT 9510526LRT 9510536LRT 9511035

LRT 9511063

LRTZ 859350

LRTZ 859545

LRTZ 8510036

LRTZ 8510064

LRTZ 9010050

LRTZ 9010536

LRTZ 9010564

LRTZ 9511036

LRTZ 9511064

440440280330390490490575605

1 0401 060

295355415580580610630

1 1001 120

315430650660

1 1601 180

8585858585858585858585

909090909090909090

959595959595

93939595959595

100100100100

100100100100100105105105105

105105110110110110

50.5 50.5 26 30 36 45.5 45.5 35 36 63 64

26 30 36 50.5 50.5 35 36 63 64

26 36 35 36 63 64

1111.511.51.51.11.11.11.1

90 90 90 93 90 93 93 91.5 91.5 91.5 91.5

91 91 93 93.5 93 93.5 93.5 98 98 98 98

TR 9311850GTR 9311850TAF 9511526RNAF 9511530TAF 9511536TR 9512045GTR 9512045RNA 4917RNA 4917 UURNA 6917RNA 6917 UU

11.511.51.51.11.11.11.1

95 98 95 98 98 96.5 96.5 96.5 96.5

98 98.5 98 98.5 98.5 103 103 103 103

TAF 10012026RNAF 10012030TAF 10012036TR 10012550GTR 10012550RNA 4918RNA 4918 UURNA 6918RNA 6918 UU

111.11.11.11.1

100 100 101.5 101.5 101.5 101.5

103 103 108 108 108 108

TAF 10512526TAF 10512536RNA 4919RNA 4919 UURNA 6919RNA 6919 UU

(1)



Assembled bearings

d a



INNER RINGS


Shaft dia.

mm

Mass (Ref.)



100

105

110

120

125

LRT 10011030LRT 10011040LRT 10011050

LRT 10011540

LRT 10511550

LRT 11012030LRT 11012540

LRT 12013030LRT 12013545

LRT 12514060

LRTZ 10011050

LRTZ 10011541

LRTZ 10511550

LRTZ 11012541

LRTZ 12013546

LRTZ 12514060

380500640640770780

670670

410840870

4501 0301 050

1 4601 460

100100100100100100

105105

110110110

120120120

125125

110110110110115115

115115

120125125

130135135

140140

304050.550.54041

50.550.5

304041

304546

60.560.5

111.51.51.11.1

105105108108106.5106.5

108108108.5108.5113113

TAF 11013030TAF 11013040TR 11013550GTR 11013550RNA 4920RNA 4920 UU

1.51.5

113113

113.5113.5

TR 11515350GTR 11515350

11.11.1

11.11.1

1.51.5

115116.5116.5

125126.5126.5

133133

118123123

128133133

138138

RNA 4822RNA 4922RNA 4922 UU


TR 14017860GTR 14017860

130

135

LRT 13014535LRT 13015050

LRT 13515060

LRTZ 13015051

LRTZ 13515060

8601 6701 720

1 5601 560

130130130

135135

145150150

150150

355051

60.560.5

1.11.51.5

1.51.5

136.5138138

143143

143148148

148148


TR 15018860GTR 15018860

140LRT 14015535LRT 14016050

LRTZ 14016051

9301 7901 830

140140140

155160160

355051

1.11.51.5

146.5148148

153158158


(1)



Assembled bearings

d a

LRT LRTZ

F d

B

r

r

dF

B

r

r

d a

H





Shaft dia.

mm

Mass (Ref.)



150

160

170

180

190

LRT 15016540LRT 15017060

LRT 16017540LRT 16018060

LRT 17018545LRT 17019060

LRT 18019545LRT 18020569

LRT 19021050LRT 19021569

1 1302 290

1 2002 440

1 4202 580

1 5003 950

2 3804 200

150150

160160

170170

180180

190190

165170

175180

185190

195205

210215

4060

4060

4560

4569

5069

1.12

156.5159

163168

RNA 4830RNA 4930

1.12

166.5169

173178

RNA 4832RNA 4932

1.12

1.12

1.52

176.5179

186.5189

198199

183188

193203

208213

RNA 4834RNA 4934

RNA 4836RNA 4936

RNA 4838RNA 4938

200

220

LRT 20022050LRT 20022580

LRT 22024050LRT 22024580

2 5205 000

2 7505 500

200200

220220

220225

240245

5080

5080

1.52.1

1.52.1

208211

228231

218223

238243

RNA 4840RNA 4940

RNA 4844RNA 4944

240

260

280

300

320

LRT 24026560LRT 24026580

LRT 26028560LRT 260290100

LRT 28030569LRT 280310100

LRT 30033080LRT 300340118

LRT 32035080LRT 320360118

4 5306 000

4 9309 900

6 05010 600

9 10018 000

9 60019 200

240240

260260

280280

300300

320320

265265

285290

305310

330340

350360

6080

60100

69100

80118

80118

22.1

22.1

22.1

2.13

2.13

249251

269271

289291

311313

331333

262262

282287

302307

327337

347357

RNA 4848RNA 4948

RNA 4852RNA 4952

RNA 4856RNA 4956

RNA 4860RNA 4960

RNA 4864RNA 4964

(1)



Assembled bearings

d a

INNER RINGS


Shaft dia.

mm

Mass (Ref.)



340

360

380

400420

440

LRT 34037080LRT 340380118

LRT 36039080LRT 360400118

LRT 380415100LRT 380430140

LRT 400450140

LRT 420470140

10 20020 300

10 80021 500

16 70033 900

35 600

37 300

340340

360360

380380

400

420

370380

390400

415430

450

470

80118

80118

100140

140

140

2.13

351353

367377

RNA 4868RNA 4968

2.13

371373

387397

RNA 4872RNA 4972

2.14

4

4

391396

416

436

412427

447

467

RNA 4876RNA 4976

RNA 4980

RNA 4984

LRT 440490160 44 100 440 490 160 4 456 487 RNA 4988

(1)



Assembled bearings

d a

LRT

F d

B

r

r

d a

H



Note(1)　 Maximum allowable fillet corner radius of shaft Remark　LRB and LRBZ…B are provided with an oil groove and an oil hole.

Shaft dia.

mm(inch)

Mass (Ref.)


gd F B Min. Max. Max.

9.525（ 38）

LRB 61012

LRBZ 61016 B

12.700（ 12）

LRB 81212LRB 81216

LRBZ 81216 B

15.875（ 58）

LRB 101412LRB 101416

LRBZ 101416 B

19.050（ 34）

LRB 121612LRB 121616

LRBZ 121616 B

22.225（ 78）

LRB 141816LRB 141820

LRBZ 141820 B

(1)



d a ras max

18.525

19.30025.650

1414

17.517.517.5

212121

242424

272727

14.514.5

0.60.6

110.6

110.6

110.6

110.6

181818

21.221.221.2

24.424.424.4

27.527.527.5

19.30025.65025.650

19.30025.65025.650

19.30025.65025.650

25.65032.00032.000

9.525（ 3 8） 9.525（ 3 8）

12.700（ 1 2）12.700（ 1 2）12.700（ 1 2）

15.875（ 5 8）15.875（ 5 8）15.875（ 5 8）

19.050（ 3 4）19.050（ 3 4）19.050（ 3 4）

22.225（ 7 8）22.225（ 7 8）22.225（ 7 8）

15.875（ 5 8）15.875（ 5 8）

19.050（ 3 4）19.050（ 3 4）19.050（ 3 4）

22.225（ 7 8）22.225（ 7 8）22.225（ 7 8）

25.400（1 ）25.400（1 ）25.400（1 ）

28.575（1 1 8）28.575（1 1 8）28.575（1 1 8）

23.53131

2837.537.5

334444

506262

Shaft dia. 9.525− 22.225mm

INNER RINGS

Inch Series

Assembled bearings

BR 101812BR 101816UU

BR 122012BR 122016BR 122016UU

BR 142212BR 142216BR 142216UU

BR 162412BR 162416BR 162416UU

BR 182616BR 182620BR 182620UU

LRB LRBZ … B

dF

B

da

ra

dF

B

H



Shaft dia.

mm(inch)

Mass (Ref.)


gd F B Min. Max. Max.

28.575（1 18）

LRB 182216LRB 182220

LRBZ 182220 B

31.750（1 14）

LRB 202416LRB 202420

LRBZ 202420 B

34.925（1 38）

LRB 222616LRB 222620

LRBZ 222620 B

38.100（1 12）

LRB 242816LRB 242820LRB 243020

LRBZ 242820 BLRBZ 243020 B

(1)



d a ras max

637777

25.65032.00032.000

33.533.533.5

373737

40.240.240.2

43.343.343.343.343.3

33.933.933.9

110.6

1.51.50.6

1.51.50.6

1.51.51.50.61

37.137.137.1

40.240.240.2

43.443.44543.445

25.65032.00032.000

25.65032.00032.000

25.65032.00032.00032.00032.000

28.575（1 1 8）28.575（1 1 8）28.575（1 1 8）

31.750（1 1 4）31.750（1 1 4）31.750（1 1 4）

34.925（1 3 8）34.925（1 3 8）34.925（1 3 8）

38.100（1 1 2）38.100（1 1 2）38.100（1 1 2）38.100（1 1 2）38.100（1 1 2）

34.925（1 3 8）34.925（1 3 8）34.925（1 3 8）

38.100（1 1 2）38.100（1 1 2）38.100（1 1 2）

41.275（1 5 8）41.275（1 5 8）41.275（1 5 8）

44.450（1 3 4）44.450（1 3 4）47.625（1 7 8）44.450（1 3 4）47.625（1 7 8）

718686

779696

80100155100160

Shaft dia. 25.400− 38.100mm

25.400（1）

LRB 162016LRB 162020

LRBZ 162020 B

30.530.530.5

110.6

30.730.730.7

25.65032.00032.000

25.400（1 ）25.400（1 ）25.400（1 ）

31.750（1 1 4）31.750（1 1 4）31.750（1 1 4）

567272

INNER RINGS

Inner Rings for General Usage Inch Series

Assembled bearings

BR 223016BR 223020BR 223020UU

BR 243316BR 243320BR 243320UU

BR 263516BR 263520BR 263520UU

BR 283716BR 283720 BR 283820BR 303920BR 283720UUBR 303920UU

BR 202816BR 202820BR 202820UU

LRBZ … BLRB

dF

B

da

ra

dF

B

H



Shaft dia.

mm(inch)

Mass (Ref.)


g d F B Min. Max. Max.

50.800（2）

LRB 324024LRB 324028

LRBZ 324028 B

57.150（214）

LRB 364424LRB 364428

LRBZ 364428 B

63.500（212）

LRB 404824LRB 404828

LRBZ 404828 B

(1)



d a ras max

335390390

38.35044.70044.700

585858

656565

717171

616161

221.5

221.5

221.5

676767

737373

38.35044.70044.700

38.35044.70044.700

50.800（2 ）50.800（2 ）50.800（2 ）

57.150（2 1 4）57.150（2 1 4）57.150（2 1 4）

63.500（2 1 2）63.500（2 1 2）63.500（2 1 2）

63.500（2 1 2）63.500（2 1 2）63.500（2 1 2）

69.850（2 3 4）69.850（2 3 4）69.850（2 3 4）

76.200（3 ）76.200（3 ）76.200（3 ）

375440440

410480480

Shaft dia. 41.275− 63.500mm

41.275（1 58）

LRB 263216LRB 263220

LRBZ 263220 B

44.450（1 34）

LRB 283624LRB 283628

LRBZ 283628 B

25.65032.00032.000

38.35044.70044.700

41.275（1 5 8）41.275（1 5 8）41.275（1 5 8）

44.450（1 3 4）44.450（1 3 4）44.450（1 3 4）

50.800（2 ）50.800（2 ）50.800（2 ）

57.150（2 1 4）57.150（2 1 4）57.150（2 1 4）

135170170

300345345

484848

52.552.552.5

1.51.51

1.51.51.5

494949

555555

INNER RINGS

Inner Rings for General Usage Inch Series

Assembled bearings

LRBZ … BLRB

BR 405224BR 405228BR 405228UU

BR 445624BR 445628BR 445628UU

BR 486024BR 486028BR 486028UU

BR 324116BR 324120BR 324120UU

BR 364824BR 364828BR 364828UU

dF

B

da

ra

dF

B

H


Shaft dia. 69.850− 88.900mm


Note(1)　 Maximum allowable fillet corner radius of shaft Remark　 LRB with inner ring bore diameter d of 76.200 mm or less and LRBZ…B are provided with an oil groove and an oil hole. Other models are provided with an oil groove and two oil holes.

Shaft dia.

mm(inch)

Mass (Ref.)


g d F B Min. Max. Max.

LRBZ 445228 B

69.850（234）

LRB 445228LRB 445232

76.200（3）

LRB 485632

LRBZ 485632 B

82.550（314）88.900（312）

LRB 526032

LRB 566432

LRBZ 526032 B

(1)



d a ras max

77 77 77

83.5 83.5

91 91

97

221.5

21.5

2.51.5

2.5

797979

8686

9393

99

44.70051.05044.700

51.05051.050

51.05051.050

51.050

69.850（2 3 4）69.850（2 3 4）69.850（2 3 4）

76.200（3 ）76.200（3 ）

82.550（3 1 4）82.550（3 1 4）

88.900（3 1 2）

82.550（3 1 4） 82.550（3 1 4） 82.550（3 1 4）

88.900（3 1 2） 88.900（3 1 2）

95.250（3 3 4） 95.250（3 3 4）

101.600（4 ）

530600530

640640

690690

750

INNER RINGS

Inch Series

Assembled bearings

BR 526828BR 526832BR 526828UU

BR 567232BR 567232UU

BR 607632BR 607632UU

BR 648032

LRBZ … BLRB

dF

B

da

ra

dF

B

CFCFKRCFSNUCFCR

I

I1 I2

Standard Type Cam FollowersStainless Steel Made Cam FollowersEccentric Type Cam FollowersSolid Eccentric Stud Type Cam FollowersThrust Disk Type Cam FollowersCentralized Lubrication Type Cam FollowersEasy Mounting Type Cam Followers

Cam Follower GC-Lube Cam FollowersMiniature Type Cam FollowersStainless Steel Made Miniature Cam FollowersThrust Disk Type Miniature Cam FollowersCylindrical Roller Cam FollowersInch series Cam Followers

IKO Cam Followers are bearings with a stud incorpo-rating needle rollers in a thick walled outer ring. These bearings are designed for outer ring rotation, and have superior rotational performance with a small coefficient of friction and high load capacity. As studs already have threads or steps, they are easy to mount.Cam Followers are follower bearings for cam mecha-nisms and linear motions and have high rigidity and


Structure of Cam Followers

Standard Type Cam Follower(1) Thrust Disk Type Cam Follower

Seal

Cage

Stud

Side plate

Needle roller

Outer ring

Seal

Thrust disk

Cage

Stud

Side plate

Needle roller

Outer ring

Cylindrical Roller Cam Follower

Shield plate

Stud

Side plate

Cylindrical roller

Outer ring

Miniature Type Cam Follower

Cage

Stud

Side plate

Needle roller

Outer ring

C-Lube Cam Followers(1)

CF…WBUUR/SG

Cage

Seal

Thrust washer

Stud

Side plate

Needle roller

Outer ring

Standard Type Cam Follower CFKR

CFKR…UU

Stud

Side plate

Needle roller

Outer ring

CageSeal

high accuracy. They are, therefore, used widely for machine tools, industrial robots, electronic devices, and OA equipment.Stainless steel made Cam Followers are superior in corrosion resistance and suitable for applications in environments where oil cannot be used or water splashed, and in clean rooms.

Note(1)　 Thermosetting solid-type lubricant C-Lube fills inner space of the bearing.

CFCFKRCFSNUCFCR

I

I3 I41N=0.102kgf=0.2248lbs.1mm=0.03937inch

TypesFor Cam Followers, the types shown in Table 1 are available.

Table 1 Type of Cam FollowersItem

Bearing Model

With cage Full complement

Crowned outer ring Cylindrical outer ring Crowned outer ring Cylindrical outer ring

Standard Type Cam FollowerCF…BCFKR

High carbon steel made

Stud Head Hex Hole

Shield type CF … B R CF … B CF …V B R CF … V B

Sealed type CF … B UUR CF … B UU CF …V B UU R CF … V B UU

Stainless steel madeShield type CF …F B R CF …F B Sealed type CF …F B UUR CF …F B UU

High carbon steel made Double Hex Hole Shield type CFKR… R CFKR CFKR…V R CFKR… V

Sealed type CFKR… UUR CFKR … UU CFKR…V UU R CFKR… V UU

Eccentric Type Cam FollowersCFE…BCFKRE


Stud Head Hex HoleShield type CFE… B R CFE… B CFE…V B R CFE… V B

Sealed type CFE… B UUR CFE… B UU CFE…V B UU R CFE… V B UU

Double Hex Hole Shield type CFKRE… R CFKRE CFKRE…V R CFKRE… V

Sealed type CFKRE… UUR CFKRE… UU CFKRE…V UU R CFKRE… V UU

Solid Eccentric Stud Type Cam FollowersCFES…B

High carbon steel made With hexagon holeShield type CFES… B R CFES… B

Sealed type CFES… B UUR CFES… B UU

Thrust Disk Type Cam FollowersCF…WB


With hexagon hole

Shield type CF … WB R Sealed type CF … WB UUR

Stainless steel madeShield type CF …F WB R Sealed type CF …F WB UUR

Centralized Lubrication Type Cam FollowersCF-RU1, CF-FU1

High carbon steel made With screwdriver slot Sealed type CF-RU1 CF-FU1

Easy Mounting Type Cam FollowersCF-SFU…B

High carbon steel made With hexagon hole Sealed type CF-SFU… B

Cam Follower GCF…G High carbon steel made With hexagon hole Shield type CF …G

C-Lube Cam FollowersCF…WB…/SG

High carbon steel made With hexagon hole Sealed type CF …WB…/SG

Miniature Type Cam FollowersCFS

High carbon steel madeWith hexagon hole Shield type

CFS CFS… V

Stainless steel made CFS…F CFS…F V

Thrust Disk Type Miniature Cam FollowersCFS…W

High carbon steel madeWith hexagon hole Shield type

CFS… W CFS…WV

Stainless steel made CFS…F W

Cylindrical Roller Cam FollowersNUCF…B

High carbon steel made With hexagon hole Shield type NUCF… B R

Inch series Cam FollowersCR


With hexagon hole

Shield type CR … B R CR …B CR …V B R CR … V B

Sealed type CR … B UU R CR …B UU CR …V B UU R CR … V B UU

Sealed type with integrated thrust washer

CR …V B S R CR … V B S

With screwdriver slotShield type CR … R CR CR …V R CR … V

Sealed type CR … UU R CR … UU CR …V UU R CR … V UU

Inch series Cam FollowersCRH…B

High carbon steel made With hexagon holeShield type CRH…V B R CRH… V B

Sealed type CRH…V B UU R CRH… V B UU

Standard Type Cam FollowersThese are the basic type bearings in IKO Cam Follower

series. Standard Type Cam Followers CF…B with stud

diameters ranging from 3 mm to 30 mm are available,

and are suitable for a wide range of applications.

Standard Type Cam Followers CFKR have sockets with

hexagon holes on both stud ends, which allow mounting

with a hexagon wrench from either side.

Eccentric Type Cam FollowersThe eccentric stud can be rotated to create a uniform line,

enabling easy adjustment for even load distribution

across the outer ring outer surface.

Eccentricity is 0.4 (CFE)〜 1.5 mm.

Solid Eccentric Stud Type Cam FollowersThe eccentric stud can be rotated to create a uniform line,

enabling easy adjustment for even load distribution across

the outer ring outer surface.

These are eccentric cam followers with an integrated stud

that can be mounted in the same mounting holes as

those for Standard Type Cam Followers.

Eccentricity is from 0.25 mm to 0.6 mm.

Thrust Disk Type Cam FollowersThe thrust disk seal, made of special synthetic resin with

excellent abrasion and heat resistance, is incorporated in

the sliding contact area between the shoulders of the

outer ring and the stud head and side plate. This prevents

friction and abrasion inside the bearing due to axial loads

caused by mounting errors.

Centralized Lubrication Type Cam FollowersThese bearings have one or two pipe-threaded holes in

the stud. Thus, this series is suitable when centralized

lubrication is required.

Lubrication method of Hex Head Cam Followers〈Types〉Standard Type, Eccentric Type, Solid Eccentric Stud Type, Thrust Disk Type,

Easy Mounting Type, Cylindrical Roller Type.

Stud dia.

Re-greasing fitting is incorporated in the stud head. Grease nipple is incorporated in the stud head.

Stud dia.(1)

Remark : All Easy Mounting Type have a 1way port.Note (1) CFKR and CFKRE can be lubricated from both head part and thread side.

Also, a grease nipple is built into the stud head.

Easy Mounting Type Cam FollowersThese bearings have a stepped tapered portion on the stud. When mounting the Cam Follower, it is easy to fix its location by tightening a set screw to the stepped por-tion. Thus, this type is suitable when a large number of Cam Followers are used in a machine such as a pallet changer.

C-Lube Cam FollowersThese bearings are lubricated with a newly developed thermosetting solid-type lubricant which fills the inner space of the bearing. This lubricant provides long-term maintenance free.

Miniature Type Cam FollowersThese are compactly designed bearings, incorporating very thin needle rollers in an outer ring with a small out-side diameter. They are used in electronic devices, OA equipment, small index devices, etc.

Cylindrical Roller Cam FollowersThese bearings are full complement type bearings incor-porating double rows of full complement cylindrical rollers in the outer ring, and can withstand large radial loads.Additionally, the outer ring is guided by the outer ring shoulder and the end face of cylindrical rollers to the axial direction.

Inch series Cam FollowersTwo types, CR and CRH, are available in the Inch series Cam Followers. Black oxide film treatment is made on CRH models. CR with ThrustDisk SealsTM prevents the ingress of for-eign substances as well as friction and abrasion on the interior of the bearing caused by axial load generated due to mounting errors.

CFCFKRCFSNUCFCR

I

I5 I6

Internal Structures and Shapes

Roller guide methodCam Followers include the caged type and the full complement type . The caged type has a small coeffi-cient of friction and is suitable for high speed rota-tions, while the full complement type is suitable for heavy loads at low speed rotations.

Type of materialIn addition to high carbon steel products, stainless steel products are also available. Stainless steel prod-ucts are suited for applications where oil cannot be used or where water splashes, and in cleanrooms.

Seal structureAvailable Cam Followers include the shield type, the sealed type, and type with ThrustDisk SealsTM. In the shield type, labyrinths are formed by the narrow clear-ances between the outer ring and the stud flange, and between the outer ring and the side plate. The sealed type incorporates seals in the narrow clearances (the shield type labyrinths) to prevent the ingress of for-eign substances. The sealed type with ThrustDisk SealsTM prevents grease leakage and the ingress of foreign substances into the bearing interior. It also prevents friction and abrasion on the interior of the bearing caused by axial load generated due to mount-ing errors.

Shape of outer ring outside surfaceThe outside surface of the outer r ing of Cam Followers, which makes direct contact with the mat-ing cam guide surface, is either crowned or cylindri-cal. The crowned outer rings are effective in moderat-ing the edge load due to mounting errors. The cylin-drical outer rings have a large contact area with the mating cam guide surface, and are suitable for appli-cations in which the applied load is large or the cam guide surface hardness is low.

The Cam Follower series has various types, such as high carbon steel type, stainless steel type, caged type, full complement type, shield type, sealed type,

type with crowned outer ring, type with cylindrical outer ring, etc.

Identification numberSome examples of the identification number of Cam Followers are shown below. For applicable material symbol, roller guide method, seal structure and shape of outer ring outside surface, refer dimension table of each series.

10CF

R

V

UU

10CF

R

UU R

W

B

B

B

W

V3CFS P6F

With cage typeFull complement type

Roller guide methodNo symbolV

High carbon steel madeStainless steel made

MaterialNo symbolF

With crowned outer ringWith cylindrical outer ring

Shape of outer ring outside surfaceR

No symbol

Classification symbolNo symbolP6

P5

P4

Class 0Class 6Class 5Class 4

Applicable to Miniature CFS series

Example 1

Example 2

Example 4

8CF /SGExample 3

SizeThe value indicates a stud diameter. (unit: mm)For Double Hex Hole Cam Followers, the outside diameter of the outer ring is indicated.In the inch series, the outside diameter of the outerring in units of 1/16 inch is indicated.

Standard Type Cam Follower(Stud Head Hex Hole)Standard Type Cam Follower(Double Hex Hole )Eccentric Type Cam Followers(Stud Head Hex Hole)Eccentric Type Cam Followers(Double Hex Hole )Solid Eccentric Stud Type Cam FollowersThrust Disk Type Cam FollowersCentralized Lubrication Type Cam Followers(Crowned outer ring)Centralized Lubrication Type Cam Followers(Cylindrical outer ring)Easy Mounting Type Cam FollowersCam Follower GC-Lube Cam FollowersMiniature Type Cam FollowersThrust Disk Type Miniature Cam FollowersCylindrical Roller Cam FollowersInch series Cam Followers(With screwdriver slot)Inch series Cam Followers(Stud Head Hex Hole)Inch series Cam Followers(Stud Head Hex Hole)

Model code

CF…BCFKRCFE…BCFKRECFES…BCF…WBCF-RU1CF-FU1CF-SFU…BCF…GCF…WB…/SGCFSCFS…WNUCF…BCRCR…BCRH…B

Shield typeSealed typeSealed type with integrated thrust washer

Seal structureNo symbolUU

S（1）Notes（1） Applicable only to Inch Series Cam Followers CR (Stud Head Hex Hole)


《Sealed type with integrated thrust washer》(1)

Part A enlarged view

Part A

Notes(1) Applicable only to Inch Series Cam Followers CR (Stud Head Hex Hole)

《Stainless steel made》《High carbon steel made》

《Full complement》《With cage》

《Shield type》《 Sealed type》

《Crowned outer ring》《Cylindrical outer ring》

RR

CFCFKRCFSNUCFCR

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AccuracyThe accuracy of Cam Followers is shown in Table 2, Table 3.1, Table 3.2 and Table 3.3. Cam Followers with special accuracy are also available. When they are required, please contact IKO.

Note(1)　Applicable to Cam Followers other than Miniature Type Cam Followers and Inch Series Cam Followers.

Note(1)　Applicable to Cam Followers other than Miniature Type Cam Followers and Inch Series Cam Followers.

Table 2 TolerancesSeries

Dimensions and symbols

Outside dia. of outer ring D

Stud dia. d1

Width of outer ring C

0-50

h7 h6 +25 0

0-120

0-120

0-130

0-50

See Table 3.3See Table 3.1 See Table 3.2

Metric CF（1）

Crowned outer ring Cylindrical outer ring

Inch series CF


Miniature series CF

unit: μ m

Table 3.1 Tolerances and allowable values of outer rings (Metric CF cylindrical outer rings(1))

DNominal outside dia. of outer ring

mm

Over Incl. High Low

∆DmpSingle plane mean outside dia. deviation

6

18

30

50

80

18

30

50

80

120

0

0

0

0

0

- 8- 9-11

-13

-15

10

12

14

16

19

6

7

8

10

11

15

15

20

25

35

VDspOutside dia.

variation in a single radial plane (Max.)

VDmpMean outside dia.

variation (Max.)

Kea Radial runout of

assembled bearing outer ring (Max.)

unit: μ m

Table 3.2 Tolerances and allowable values of outer rings (Miniature series CF)


Class 0

High Low Low Low LowHigh High High

Class 6 Class 5 Class 4 Class 0 Class 6 Class 5 Class 4

0 -8 0 -7 0 -5 0 -4 15 8 5 4

Kea Radial runout of assembled bearing outer ring

(Max.)

unit: μ m

Table 3.3 Tolerances and allowable values of outer rings (Inch series CF cylindrical outer ring)

DNominal outside dia. of outer ring

mm

Over Incl. High Low

∆DmpSingle plane mean outside dia.

deviation

6

18

30

50

80

18

30

50

80

120

0 -25

10

12

14

16

19

6

7

8

10

11

15

15

20

25

35

VDspOutside dia.

variation in a single radial plane (Max.)

VDmpMean outside dia.

variation (Max.)

Kea Radial runout of

assembled bearing outer ring (Max.)

unit: μ m

ClearanceThe radial internal clearances of Cam Followers are shown in Table 4.

Table 4 Radial internal clearance unit: μ m

Note (1)　 Also applicable to full complement type, type with crowned outer ring, sealed type, and type with hexagon hole. (2)　 Applicable to all Cam Followers other than Miniature Type Cam Followers, Cylindrical Roller Cam Followers and Inch Series Cam

Followers. (3)　 Applicable to all Miniature Type Cam Followers.

FitTables 5 and 6 show recommended tolerances of mounting holes for Cam Follower studs. Since the Cam Follower is supported in a cantilever position, the mounting hole diameter should be prepared with-out play between the stud and the hole especially when heavy shock loads are applied.

Table 5 Recommended fit

Type

Metric CF

Miniature series CF

Cylindrical Roller Cam Followers

Inch series CF

H7

H6

H7

F7

Tolerance class of mounting hole for stud

Table 6 Dimensional tolerances of mounting hole

Nominal outside dia. of studmm

F7 H6 H7

Over Incl. Over Incl. Over Incl. Over Incl.

− 3

6

10

18

30

3

6

10

18

30

50

+16 +22

+28

+34

+41

+50

+ 6+10

+13

+16

+20

+25

+ 6+ 8+ 9+11

+13

+16

0

0

0

0

0

0

+10 +12

+15

+18

+21

+25

0

0

0

0

0

0

unit: μ m

Identification number （1） Radial internal clearance

Metric CF series （2）

Miniature CFS series CF （3）

Cylindrical Roller Cam Followers NUCF…B

Inch series CF Min. Max.

CF 3〜CF 5 CFS1.4 〜CFS5 CR 8, CR 8-1, CRH 8-1, CRH 9 3 17

CF 6 CFS6 CR10, CR10-1, CRH10-1, CRH11 5 20

CF 8〜CF12-1CFKR22〜CFKR32 CR12〜CR22, CRH12〜CRH22 5 25

CF16〜CF20-1CFKR35〜CFKR52 CR24〜CR36, CRH24〜CRH36 10 30

CF24〜CF30-2CFKR62〜CFKR90 CR48, CRH40〜CRH56 10 40

CRH64 15 50

NUCF10 R〜NUCF24 R 20 45

NUCF24-1R〜NUCF30-2R 25 50

CFCFKRCFSNUCFCR

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Maximum Allowable Static LoadThe applicable load on Cam Followers is, in some cases, limited by the bending strength and shear strength of the stud and the strength of the outer ring instead of the load rating of the needle roller bearing. Therefore, the maximum allowable static load that is limited by these strengths is specified.

Track CapacityTrack capacity is defined as the load which can be con-tinuously applied on a Cam Follower placed on a steel cam guide surface without causing deformation or indentation on the cam guide surface when the outer ring of the Cam Follower makes contact with the mat-ing cam guide surface (plane). The track capacities shown in Tables 7.1 and 7.2 are applicable when the hardness of the mating cam guide surface is 40HRC (Tensile strength 1250N/mm2). When the hardness of the mating cam guide surface differs from 40HRC, the track capacity is obtained by multiplying the value by the track capacity factor shown in Table 8.If lubrication between the outer ring and the mating cam guide surface is insufficient, seizure and/or wear may occur depending on the application. Therefore, attention must be paid to lubrication and surface roughness of the mating cam guide especially for high-speed rotations such as cam mechanisms.For lubrication between the outer ring and the mating cam guide surface, C-Lube Unit for Cam Followers is recommended. (See page Ⅰ20.)

Notes(1)　 Applicable to Cam Followers other than Miniature Type Cam Followers and Inch Series Cam Followers. 　　 (2)　 This table is applicable to all Miniature Type Cam Followers.

Table 7.1 Track load capacity

Type of bearing

Metric

CF （1）

Miniature

series CF （2）


with crowned outer ring

CF 3 R

CF 4 R

CF 5 R

CF 6 R

CF 8 R

CF10 R・CFKR22R

CF10-1R・CFKR26R

CF12 R・CFKR30R

CF12-1R・CFKR32R

CF16 R・CFKR35R

CF18 R・CFKR40R

CF20 R・CFKR52R

CF20-1R・CFKR47R

CF24 R・CFKR62R

CF24-1R・CFKR72R

CF30 R・CFKR80R

CF30-1R・CFKR85R

CF30-2R・CFKR90R

−−−−−−−

542

712

794

1 040

1 330

1 610

2 030

2 470

2 710

3 060

3 660

5 190

4 530

6 580

8 020

9 220

9 990

10 800

−−−−−−−

CF 3

CF 4

CF 5

CF 6

CF 8

CF10 ・CFKR22

CF10-1・CFKR26

CF12 ・CFKR30

CF12-1・CFKR32

CF16 ・CFKR35

CF18 ・CFKR40

CF20 ・CFKR52

CF20-1・CFKR47

CF24 ・CFKR62

CF24-1・CFKR72

CF30 ・CFKR80

CF30-1・CFKR85

CF30-2・CFKR90

CFS1.4

CFS2

CFS2.5

CFS3

CFS4

CFS5

CFS6

1 360

1 790

2 210

3 400

4 040

4 680

5 530

7 010

7 480

11 200

14 500

23 200

21 000

34 300

39 800

52 700

56 000

59 300

128

220

298

485

799

1 210

1 680

Track capacity


with cylindrical outer ring

Track capacity

unit: N

Table 7.2 Track capacity



CR 8 R

CR 8-1R

−CR10 R

CR10-1R

−CR12 R

CR14 R

CR16 R

CR18 R

CR20 R

CR22 R

CR24 R

CR26 R

CR28 R

CR30 R

CR32 R

CR36 R

−−−−−−

Type of bearing

Inch series

CF （1）

770

770

−1 030

1 030

−1 340

1 630

1 970

2 300

2 680

3 050

3 410

3 820

4 210

4 610

5 050

5 900

−−−−−−

CR 8

CR 8-1

−CR10

CR10-1

−CR12

CR14

CR16

CR18

CR20

CR22

CR24

CR26

CR28

CR30

CR32

CR36

−−

CR48

−−−

−CRH 8-1

CRH 9

−CRH10-1

CRH11

CRH12

CRH14

CRH16

CRH18

CRH20

CRH22

CRH24

CRH26

CRH28

CRH30

CRH32

CRH36

CRH40

CRH44

CRH48

CRH52

CRH56

CRH64

2 140

2 360

−3 210

3 480

−4 500

5 250

7 280

7 710

10 700

11 800

15 400

16 700

21 000

22 500

30 900

34 700

−−

64 300

−−−

−2 360

2 650

−3 480

3 830

4 500

5 250

7 280

7 710

10 700

11 800

15 400

16 700

21 000

22 500

30 900

34 700

45 000

49 500

64 300

69 600

87 000

113 000

Track capacity





Track capacity

−CRH 8-1R

CRH 9 R

−CRH10-1R

CRH11 R

CRH12 R

CRH14 R

CRH16 R

CRH18 R

CRH20 R

CRH22 R

CRH24 R

CRH26 R

CRH28 R

CRH30 R

CRH32 R

CRH36 R

CRH40 R

CRH44 R

CRH48 R

CRH52 R

CRH56 R

CRH64 R

−401

469

−579

658

853

1 050

1 420

1 660

2 160

2 450

3 410

3 820

4 210

4 610

5 690

6 640

8 970

10 200

11 400

12 700

14 100

16 800



Track capacity

Track capacity

unit: N

Table 8 Track capacity factor

Hardness

HRC Tensile strength

N/mm2

Track capacity factor

With cylindrical outer ring

With crowned outer ring

20

25

30

35

38

40

42

44

46

48

50

52

54

56

58

760

840

950

1 080

1 180

1 250

1 340

1 435

1 530

1 635

1 760

1 880

2 015

2 150

2 290

0.22

0.31

0.45

0.65

0.85

1.00

1.23

1.52

1.85

2.27

2.80

3.46

4.21

5.13

6.26

0.37

0.46

0.58

0.75

0.89

1.00

1.15

1.32

1.51

1.73

1.99

2.29

2.61

2.97

3.39

Notes(1)　 This table is applicable to all Inch series CF.

CFCFKRCFSNUCFCR

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LubricationGrease-prepacked Cam Followers are shown in Table 10. The lubricating grease prepacked in these bear-ings is ALVANIA GREASE S2 (Shell Lubricants Japan K.K.).For Cam Followers without prepacked grease, grease should be packed through the oil hole in the stud for use. If they are used without grease, wear of rolling contact surfaces may take place, leading to a short bearing life.

Allowable Rotational SpeedThe allowable rotational speed of Cam Followers is affected by mounting and operating conditions. For

reference, Table 9 shows d1n values when only pure radial loads are applied. Considering that axial loads also act under actual operating conditions, the recom-

mended d1n value is 1/10 of the value shown in the table.

In case of C-Lube Cam Follower, d1n value is 10000 or less.

Table 9 d1n values of Cam Followers（1）Lubricant

Type

Caged type


Cylindrical Roller Cam Follower

84 000

42 000

66 000

140 000

70 000

110 000

Grease Oil

Note(1)　d1n value＝ d1× n　 where, 　d1(2) : Stud diameter mm　　　　　　　　 n : Rotational speed min-1

(2)　 For Eccentric Type Cam Followers, thread diameter G as shown in the dimension table is applicable.

Table 10 Bearings with prepacked grease 〇：Prepacked ×：Not prepacked

Notes(1)　 For Eccentric Type Cam Followers, thread diameter G as shown in the dimension table is applicable. 　　 (2)　 C-Lube, a thermosetting solid-type lubricant, fills the inner space of the bearing.

Item

Series Size of stud diameter d1（1） mm

With cage

Full complementShield type Sealed type

With hexagon hole With screwdriver slot With hexagon hole With screwdriver slotStandard Type Cam Follower

CF…BCFKR 3 〜 5

〇

− 〇 −

−Eccentric Type Cam Followers

CFE…BCFKRE 6 〜 10

〇Solid Eccentric Stud Type Cam Followers CFES…B

12 〜 30 ×Thrust Disk Type Cam Followers CF…WB

Centralized Lubrication Type Cam Followers

CF-RU1, CF-FU1 − − − 〇 −

Easy Mounting Type Cam Followers CF-SFU…B − − 〇 − −Cam Follower G CF…G 〇 − − − −C-Lube Cam Followers CF…WB…/SG(2) − − × − −Miniature Type Cam Followers

CFSCFS…W 〇 − − − 〇

Cylindrical Roller Cam Followers NUCF…B − − − − 〇

Inch series Cam Followers

CR, CR…B 〇〇〇〇〇CRH…B − − − − 〇

Oil HoleThe position of oil hole is shown in Table 11.Perform greasing quietly by fitting a lubrication nozzle indicated in Table 12 to a straight type grease gun in JIS B 9808 and pressing the nozzle against the grease nipple or re-greasing fitting.Due to their structures, lubrication is not possible for sizes 3 and 4 Standard Type Cam Followers CF…B, C-Lube Cam Followers, Cam Followers G and Miniature CFS series.

Notes(1)　 In case of Eccentric Type Cam Followers, thread diameter G shown in the table of dimensions is applicable in place of stud dia. and the oil hole on the outer surface of the stud cannot be used for lubrication.

　　 (2)　 Grease nipple is incorporated in the hexagon hole. Re-greasing can be made from the stud head and the stud end by press fitting a supplied grease nipple into the stud end. See page Ⅰ4.

　　 (3)　Re-lubrication can be made from the re-greasing fitting that is inserted into the hexagon hole. See page Ⅰ4. 　　 (4)　Tapped holes for oil connectors are provided at the stud end and hole of the head. 　　 (5)　Re-greasing can be made from the grease nipple in the hexagon hole.

Table 11 Position of oil hole 〇：Oil hole is prepared.

Oil hole positionSeriesSize of stud diameter d1 （1） mm

①Head

②Stud

outside surface

③Stud end

③

②

①

Standard Type Cam FollowerEccentric Type Cam FollowersSolid Eccentric Stud Type Cam FollowersThrust Disk Type Cam Followers

CF…BCFE…B

CFES…B

CF…WB

d1 ＜ 5 − − −

5≦ d1 ≦ 10 〇 (3) − −

10＜ d1 〇 (2) 〇〇Standard Type Cam Follower CFKR d1 ≦ 10 〇 (2) − 〇Eccentric Type Cam Followers CFKRE 10＜ d1 〇 (2) 〇〇Centralized Lubrication Type Cam Followers CF-RU1, CF-FU1(4)

d1 ≦ 12 〇 − − 12＜ d1 〇〇〇

Easy Mounting Type Cam Followers CF-SFU…B

d1 ≦ 10 〇 (3) − − 10＜ d1 〇 (5) − −

Cam Follower G CF…G − − −C-Lube Cam Followers CF…WB…/SG − − −Miniature Type Cam Followers CFS

CFS…W − − −

Cylindrical Roller Cam Followers NUCF…B d1 ≦ 10 〇 (3) − − 10＜ d1 〇 (2) 〇〇


CR…BWith hexagon hole

d1 ≦ 6.35 − − − 6.35＜ d1 − 〇〇

CRWith screwdriver slot

d1 ≦ 6.35 〇 − − 6.35＜ d1 〇〇〇

CRH…BWith hexagon hole

d1 ≦7.938 − − −7.938＜ d1 − 〇〇

CFCFKRCFSNUCFCR

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Table 12 Type and Dimension of Lubrication Nozzles

Type DimensionApplicable grease nipple and

re-grease fitting

B-5120R

NPT4-1

NPT6-1

NPB2

NPB3

NPB3-1

NPB4

NPF3 （1）

NPF6-1 （1）Re-grease fitting （1）

NPF4-1 （1）

NPF6-1 （1）

A-5120V

A-5240V

B-5120V

B-5240V

φ5

PT1/8

120 29Width acrossflats 12

Width acrossflats 12

φ5

PT1/8

240 29Width acrossflats 12


A-5126T

A-5120R

PT1/8

29120

R2.5

φ5

Width acrossflats 12Width across

flats 12

φ1.

5

PT1/8

29

φ5

126

17°


Width across flats 12

PT1/8

φ5

φ5

29120

R2.5



φ5

φ5

PT1/8

120 29Width acrossflats 12Width across

flats 12

φ5

PT1/8

240 29Width acrossflats 12Width across

flats 12

φ5

Body of grease gun

Lubrication Nozzle

Note(1)　HSP-3(Yamada Corporation)can be used for them.Remark The above nozzles can be atached on the standard grease gun shown below. If required, please consult to IKO with type of lubrication nozzle.

AccessoriesSeriesSize of stud dia. d1

mm

Grease nipple

Plug NutSpring washer

Standard Type Cam FollowerEccentric Type Cam FollowersSolid Eccentric Stud Type Cam FollowersThrust Disk Type Cam Followers

CF…BCFE…BCFES…BCF…WB

d1 ≦ 10 − − 〇 −(2)

10＜ d1 〇 − 〇 −(2)

Standard Type Cam FollowerEccentric Type Cam Followers

CFKRCFKRE

〇 − 〇 −(2)

Centralized Lubrication Type Cam Followers CF-RU1, CF-FU1 − − 〇 −

Easy Mounting Type Cam Followers CF-SFU…B − − − −Cam Follower G CF…G − − 〇 −C-Lube Cam Followers CF…WB…/SG − − 〇 −Miniature Type Cam Followers CFS, CFS…W − − 〇 −

Cylindrical Roller Cam Followers NUCF…B d1 ≦ 10 − − 〇 − 10＜ d1 〇 − 〇 −


CR…BWith hexagon hole

d1 ≦ 6.35 − − 〇 − 6.35＜ d1 〇〇〇 −

CRWith screwdriver slot − 〇〇〇 −

CRH…BWith hexagon hole

d1≦ 7.938 − − 〇 −7.938＜ d1 〇〇〇 −

Note(1)　 For Eccentric Type Cam Follower, thead diameter G is applied.Remark: The standard grease nipple (brass) is included in the Stainless Steel Made Cam Follower.

When a stainless steel grease nipple is required, please contact IKO.

AccessoriesCam Follower accessories are shown in Table 13. Grease nipple dimensions are shown in Table 14 and Table 15. Dimensions of plug for unused oil hole and dimensions of plug inserter are shown in Table 16. Nut dimensions are shown in Table 17 and Table 18.

Table 13 Accessories 〇：Attached

(1)

Table 14 Dimensions of grease nipple for Standard Type Cam Followers (1)

Identification numberDimensions of grease nipple mm Stud diameter d1 (2) Dimension of inserter mm

d D L W mm d0 +0.05−0.05

NPF3(3) 3 4 4.5 1.3 10 4.1

NPF4-1 4 5 5 1.5 12〜16 5.3

NPF6-1 6 7 8 2 18〜30 7.3

Notes (1)　Applicable to Cam Followers other than Inch series Cam Followers. 　　 (2)　For Eccentric Type Cam Followers, thread diameter G as shown in the dimension table is applicable. 　　 (3)　Only applicable to Standard Type Cam Follower CFKR, and Eccentric Type Cam Follower CFKRE sizes 22 and 26.Remark The same grease nipple as the accessory is integrated in the hexagon hole on the head.

LW

Dd d0

Inserter

Stud

Grease nipple

CFCFKRCFSNUCFCR

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Note(1)　Shows representative types.

Table 16 Dimensions of plug for Inch series Cam Followers


Dimensions of plug mm Dimension of inserter mmApplicable bearings (1)

Inserter

Stud

D t B d 0 −0.1

USB2F 3.18 0.3 3.3 2.3 CR 8 〜CR10-1

USB3F 4.76 0.4 4.3 3.7 CR12〜CR36, CRH12 〜CRH44

USB4F 6.35 0.5 4.8 5.2 CR48, CRH48〜CRH64

Table 15 Dimensions of grease nipple for Inch series Cam Followers


Dimensions mmApplicable Cam Followers

NPB2NPB3NPB3-1NPB4

3.184.764.766.35

d D D1 L L1 W 7.5 7.5 7.5 8

6 6 6 6

9 1012.513

5.5 5.5 5.5 6

1.5 1.5 1.552

CR8〜 CR10-1, CRH8-1〜 CRH11CR12〜 CR22, CRH12〜 CRH22 CR24〜 CR36, CRH24〜 CRH44 CR48, CRH48〜 CRH64

Note(1)　For Eccentric Type Cam Followers, thread diameter G as shown in the dimension table is applicable. Note(2)　Applicable to Standard Type Cam Follower CFKR, and Eccentric Type Cam Follower CFKRE.

Table 17 Metric series nut dimensions

Model of bearingStud diameter

d1(1)Nut dimensions mm

G

s

(e)

m

G m s e

CF CFKR CFES CFE

CFKRE CF…W CF-RU1 CF-FU1 CF…G

CF…WB…/SG CFS

CFS…W NUCF…B

1.4 M 1.4×0.3 1.1 3 3.25

2 M 2 ×0.4 1.6 4 4.6

2.5 M 2.5×0.45 2 5 5.8

3 M 3 ×0.5 2.4 5.5 6.4

4 M 4 ×0.7 3.2 7 8.1

5 M 5 ×0.8 4 8 9.2

6 M 6 ×1 5 10 11.5

8 M 8 ×1.25 6.5 13 15

10 M10 ×1.0(2)M10 ×1.25 8 17 19.6

12 M12 ×1.5 10 19 21.9

16 M16 ×1.5 13 24 27.7

18 M18 ×1.5 15 27 31.2

20 M20 ×1.5 16 30 34.6

24 M24 ×1.5 19 36 41.6

30 M30 ×1.5 24 46 53.1

Table 19 Dimension of NPT type grease nipple

Code numberDimension of grease nipple mm Size of stud dia. d1(1)

mmd D D1 L L1 W

NPT4-1

NPT6-1

4

6

8

8

6

6

12

14

6

8

2

4

12 〜 16

18 〜 30

Example of Identification Number

CF 12 BUU ／ NP

Special SpecificationThe grease nipple supplied with Metric series Cam Follower with hexagon socket as an accessory may be replaced with the NPT type grease nipple indicated in Table 19 upon your request. If required, please order with supplemental code, "/NP" at the end of identification number.

Note(1)　 For Eccentric Type Cam Follower CFE, thread diameter G is applied.

Remark　 Not applicable to Standard Type Cam Follower CFKR, and Eccentric Type Cam Follower CFKRE.

Table 20 Dimension of assembled NPT type grease nipple

Code numberDimension mm Size of stud dia. d1(1)

mmB4 B5

NPT4-1

NPT6-1

6

8

2

4

12 〜 16

18 〜 30

Note(1)　 For Eccentric Type Cam Follower CFE, thread diameter G is applied.

Table 18 Inch series nut dimensions

Model of bearing Stud diameter d1(inch)

Nut dimensions mm

(e)

s

G

m

G　UNF m s e

CR CRH

4.826 No.10-32 4 8 9.2

6.35 ( /1 4) 1/ 4-28 5.5 10 11.5

7.938 ( /516) 5/16-24 6.5 12 13.8

9.525 ( /3 8) 3/ 8-24 8 14 16.2

11.112 ( /716) 7/16-20 10 17 19.5

12.7 ( /1 2) 1/ 2-20 11 19 21.9

15.875 ( /5 8) 5/ 8-18 14 23 26.5

19.05 ( /3 4) 3/ 4-16 16 26 30

22.225 ( /7 8) 7/ 8-14 19 32 37

25.4 (1 ) 1 -14UNS 22 36 41.4

28.575 (1 /1 8) 1 1/ 8-12 24 41 47.1

31.75 (1 /1 4) 1 1/ 4-12 27 46 53.5

38.1 (1 /1 2) 1 1/ 2-12 33 55 63.5

44.45 (1 /3 4) 1 3/ 4-12UN 38 65 75.1

50.8 (2 ) 2 -12UN 44 75 86.6

CFCFKRCFSNUCFCR

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Operating Temperature RangeOperating temperature range of Cam Followers is -20°C ~ +120°C. However, note that the maximum allowable temperature varies in models shown in Table 21.

MountingMake the center axis of the mount ing hole perpendicular to the moving direction of the Cam Follower and match the side shoulder accurately with the seating surface indicated by dimension f in the table of dimensions. (See Fig. 1) The chamfered mounting hole should be as small as possible (C0.5 or so). When mounting Cam Followers, do not hit the flange head of the Cam Follower directly with a hammer, etc. This may lead to a bearing failure such as irregular rotation or cracking. If the Cam Follower outer ring is not in good contact w i th the ma t ing runn ing su r face then we recommend use of a crowned outer ring type.

Fig. 1 Seating surface

Oil Hole

Load

Fig. 2 Oil hole position and loading direction

Table 21 Limitation of operating temperature range

Notes(1)　 100°C when used continuously. 　　 (2)　 Below 60°C is recommended for long use.

The mark on the flange head of the stud indicates the posit ion of the oi l hole on the raceway. Avoid locating the oil hole within the loading zone. This may lead to a short bearing life. (See Fig. 2.) The hole located in the middle part of the stud perpendicular to the stud center axis is used for greasing or locking.

1

2

When tightening the nut, the tightening torque should not exceed the values shown in the table of dimensions. If the tightening torque is too large, it is possible that the threaded portion of the stud will be broken. When there is a possibility of loosening, a special nut such as a lock nut, spring washer, or self-locking nut should be used.

When direct-fixing the Cam Follower without nuts for mounting as shown in Fig. 4, it may be difficult to achieve sufficient tightening torque. If the screw then loosens, stress may concentrate on the thread, causing the stud to break. Such a method is not recommended.

4

5

Stud dia.or eccentric collar diameter

Load

EccentricitySolid Eccentric Stud Type Cam Followers and Eccentric Type Cam Followers, are mounted in reference position where mark on the head of stud is located as Fig.5. The outer ring position can be adjusted appropriately by turning the stud with a screwdriver or hexagon bar wrench using the screwdriver slot or hexagon hole of the stud head. The stud is fixed with a nut and a spring washer, etc. The tightening torque should not exceed the values of maximum tightening torque shown in the table of dimensions.When shock loads are applied and the adjusted eccentricity has to be ensured, it is recommended to make holes in the housing, stud and eccentric collar, and fix the stud with a dowel pin as shown in Fig. 6. However, when the stud diameter is less than 8 mm (Eccentric collar diameter 11 mm), it is difficult to make a hole in the stud because the stud is through-hardened.

Fig. 5 Reference position for adjusting of Solid Eccentric Stud Type Cam Followers and Eccentric Type Cam Follwers

Dowel pin

Fig. 6 Mounting example of Solid Eccentric Stud Type Cam Follower

6

Fig. 3 Methods of mounting

Fig. 4 Methods of mounting

When mounting Cam Followers, fix in place by holding the hexagon hole or screwdriver slot with a hex wrench or slotted screwdriver and use a wrench to tighten on a nut. (See Fig. 3) I f mounting by turning the hexagon hole or screwdriver slot i tself , the hexagon hole or screwdriver slot of the Cam Follower may become damaged.

3

Item

Model Stud diameter d1 mm


Shield type

Sealed type

ThrustDisk SealsTM

Miniature Type Cam Followers CFSThrust Disk Type Miniature Cam Followers CFS … W

d1 ＝ 2 − 20°C 〜 110°C(1) －－

Standard Type Cam Followers CF … BThrust Disk Type Cam Followers CF … WB

d1 ＝ 3,4 − 20°C 〜 110°C(1) －

－d1 ＝ 5 − 20°C 〜

120°C− 20°C 〜　 80°C

Standard Type Cam Followers / Stainless Steel Made CF … FB

Thrust Disk Type Cam Followers / Stainless Steel Made CF … FWB

3 ≦ d1 ≦ 5 − 20°C 〜 110°C(1)

− 20°C 〜　 80°C

－

C-Lube Cam FollowersCF … WB … /SG 5 ≦ d1 ≦ 20 − − 15°C 〜

　 80°C(2) －

Inch Series Cam FollowersThrustDisk SealsTM

CR … VBS4.826≦d1≦9.525 －－ − 20°C 〜

　 80°C

CFCFKRCFSNUCFCR

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The length of a mounting hole for Eccentric Type

Cam Followers must be at least that of the S dimension in Fig. 7.

S

G1B2

S=B2−G1+0.5

Fig. 7 Length of the mounting hole of Eccentric Type Cam Follower

Eccentric callor is available for Inch series Cam Followers.Cam Followers with Eccentric collars, CRE are also available. If required, please consult with IKO.

EB 8

EB10

EB12

EB16

EB20

EB24

EB28

EB32

EB48

6.350

9.525

12.700

15.875

17.450

22.225

25.400

30.150

44.450

( 3⁄8 )

( 1⁄2 )

( 5⁄8 )

( 7⁄8 )

(1 )

(1 3⁄4 )

6.350

9.525

12.700

15.875

17.450

22.225

25.400

30.150

44.450

( 1⁄4 )

( 3⁄8 )

( 1⁄2 )

( 5⁄8 )

( 7⁄8 )

(1 )

(1 3⁄4 )

0.250

0.380

0.380

0.760

0.760

0.760

0.760

0.760

1.520

4.826

6.350

9.525

11.112

12.700

15.875

19.050

22.225

31.750

( 1⁄4 )

( 3⁄8 )

( 7⁄16)

( 1⁄2 )

( 5⁄8 )

( 3⁄4 )

( 7⁄8 )

(1 1⁄4 )

CR 8CR 8-1CR10CR10-1CR12CR14CR16CR18CR20CR22CR24CR26CR28CR30CR32CR36CR48

(V)(B)(UU)(R)

(V)(B)(UU)(R)

(V)(B)(UU)(R)

(V)(B)(UU)(R)

(V)(B)(UU)(R)

(V)(B)(UU)(R)

(V)(B)(UU)(R)

(V)(B)(UU)(R)

VUU

Table 20 Eccentric collars for Inch series Cam Followers

Identificalnumberof collar

Outer diameter of collar

de

Length of collar

B3

Eccentricityε

Stud dia.d

ApplicableCam Followers

unit: mm

For mounting Easy Mounting Type Cam Followers, it is recommended to fix the fixing screw from the upper side to the stepped portion of the stud. (See Fig. 8.)While M5 - M6 screws are generally used as fixing screws, adjust the size used depending on the usage criteria.

Fig. 8 Mounting example of Easy Mounting Type Cam Follower

Precaution For UseDo not wash C-Lube Cam Follower with organic solvent and/or white kerosene, which have the ability of removing fat nor leave them in contact with the above agents.

To ensure normal rotation of the C-Lube Cam Follower, apply a load of 1% or over of the dynamic load rating at use.

8

7 9

1

2

( 1⁄4 )

Option Parts

C-Lube Unit for Cam Followers

Identification numberThe identification number example of IKO C-Lube Unit is shown below.

Allowable Rotational speedThe Rotational speed of IKO Cam Follower with C-Lube Unit should not exceeded d1n=10,000 for ref-erence.

d1n=d1× nd1 : Stud diameter of Cam Follower, mm

n : Rotational speed, min-1

Minimum rotational angleLubricating oil is supplied to the whole external diameter surface of the outer ring. Accordingly, use the product in a condition in which the outer ring makes one or more turns.

Operating temperatureAllowable operating temperature range of IKO Cam Follower with C-Lube Unit is -15 to 80˚C.

C-Lube unit C-Lube

IKO C-Lube Cam Follower

Magnified photos of C-Lube

Before impregnating oil

Fusion- bonded

Resin particles are strongly fusion bonded. Lubricant is retained in cavities amongstresin particles.

Resin part Lubricant part

After impregnating oil

Structure of C-Lube Unit for Cam Followers

Model code

Size of CL(Size of combined Cam Follower)unit :mm

Structure and featuresIKO C-Lube unit for Cam Follower is a lubrication part to be mounted on the Cam Follower and its integral capillary lubricating element has a lot of lubrication oil impregnated in it.The capillary lubricating element is consecutive porous resin formed by sinter molding of fine resin powder and a lot of lubrication oil is impregnated in it by using the capillary action that occurs within the internal space.

Regular lubrication is not needed as lubrication oil is supplied onto the outside diameter surface of the outer ring and mating guide surface (cam guide sur-face). The grease is not scattered and contamination of the surrounding environment is prevented.The combination with IKO C-Lube cam follower (See Page I55) realizes maintenance-free cam follower inside and cam guide surface.

CFCFKRCFSNUCFCR

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Precaution for useDo not wash with organic solvent and/or white kerosene, which have the ability of removing fat nor leave them in contact with the above agents.

Do not apply a load onto the C-Lube Unit directly.

To ensure normal rotation of the Cam Follower, apply a load of 1% or over of the dynamic load rating at use.Also, the outer ring needs to be rotate over a revolution to supply lubricant on entire outer diameter surface.

The maximum allowable load on IKO Cam Follower with C-Lube Unit is, 80% of the maximum allowable load of the needle bearing. C-Lube Unit may be damaged and influenced to the smooth rotation and lubricating performance by excessive load.

After assembling C-Lube Unit and Cam Followers in the machine, please confirm that C-Lube unit provides oil correctly to the cam guide surface before actual operation.

Do not use in the environment which contamination of l iquid and/or harmful foreign matter are expected.

Replace with new C-Lube Unit when inside oil finishes completely. Re-lubrication is not possible.

MountingSet the C-Lube Unit perpendicularly to the center axis of Cam Follower and fix together with Cam Follower by tightening nut. (See Fig. 9.)

Load

Position of C-Lube Unit is adjustable. C-Lube Unit must be positioned avoiding loading direction. (See Fig. 10.)

Fig. 9 Mounting of C-Lube Unit

When tightening the nut, the tightening torque should not be exceeded the value maximum tightening torque on dimension table. In case loosening of the nut is predicted due to vibration, using lock nut, spring washer and other special washer are recommended.

Fig. 10 Load direction of Cam Follwer

1 1

3

2

3

2

4

5

6

7

Table 21 Dimensions of C-Lube Unit for Cam Followers

Note(1)　 Only representative identification numbers are shown in the table, but applicable to all Cam Followers other than Miniature Type Cam Followers, Cylindrical Roller Cam Followers and Inch Series Cam Followers. It is recommended to use together with C-Lube Cam Followers in order to make maintenance-free more effective.

Remark Load on the Cam Follower with the C-Lube unit equipped must be up to 80% of the maximum allowable static load of the Cam Follower to be combined. For the maximum allowed static load of each Cam Follower, please see the dimension tables of respective models.

Model numberModel number（1）

Boundary Dimensions mm

D B

Boundary Dimensions mm Applicable Cam Followers

CL 5

CL 6

CL 8

CL 10

CL 10-1

CL 12

CL 12-1

CL 16

CL 18

CL 20

CL 20-1

12.4

15.4

18.4

21

21

29

29

33.8

38.8

45.8

45.8

W H T t1

10.7

12.6

14.2

17

19.2

21

22

27.4

30.4

38.4

35.4

12.1

14

14

15.5

15.5

17.5

17.5

23.4

25.4

29.9

29.9

1.5

1.5

1.5

2

2

2

2

2.5

2.5

3

3

13

16

19

22

26

30

32

35

40

52

47

10

12.2 max

12.2 max

13.2 max

13.2 max

15.2 max

15.2 max

19.6 max

21.6 max

25.6 max

25.6 max

CF 5 B

CF 6 B

CF 8 B

CF 10 BCFKR 22CF 10-1 BCFKR 26CF 12 BCFKR 30CF 12-1 BCFKR 32CF 16 BCFKR 35CF 18 BCFKR 40CF 20 BCFKR 52CF 20-1 BCFKR 47

CFCFKRCFSNUCFCR

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Option Parts

Way for Cam FollowerThe accuracy of the mating cam guide that comes in contact with the outer ring of Cam Followers has a large influ-ence on the guide performance of Cam Followers and machinery. A specially designed high-precision Way for Cam Follower should be used in order to achieve sufficient perfor-mance from the Cam Followers. Fixed with bolts for simple assembly and available in 2 models - A type or B type - depending on the mounting direction.

Identification number Model Types

Model Number

TRLA - - -

Overall Length

800

Width

49

Height

22

Table of Dimensions

L

N

W

H

hn (Pieces)

100 100

4-C0.5

4-C0.5

200

d 2 d 1

Material: SKS3 equivalentSurface hardness: 40HRC or more

《Way A Type》

Identification numberBoundary Dimensions mm

Applicable Cam FollowersL(n) W H N d1 d2 h

TRLA- 600-40-22 600(3)

40

22 12 9 14 11

Stud dia. 3~ 8mmTRLA- 800-40-22 800(4)

TRLA-1000-40-22 1000(5)

TRLA- 600-49-22 600(3)

49 Stud dia.10~18mmTRLA- 800-49-22 800(4)

TRLA-1000-49-22 1000(5)

TRLA- 600-64-22 600(3)

64 Stud dia.20~30mmTRLA- 800-64-22 800(4)

TRLA-1000-64-22 1000(5)

Remark For other dimensions, please contact IKO.

L

N

W

H

hn (Pieces)

100 1004-C0.5

4-C0.5

200

d 2

d 1

Material: SKS3 equivalentSurface hardness: 40HRC or more

《Way B Type》

Identification numberBoundary Dimensions mm

Applicable Cam FollowersL(n) W H N d1 d2 h

TRLB- 600-34-22 600(3)

34 22 17 9 14 11 Stud dia. 3~12mmTRLB- 800-34-22 800(4)

TRLB-1000-34-22 1000(5)

TRLB- 600-50-40 600(3)

50 40 25 11 17 13 Stud dia.16~30mmTRLB- 800-50-40 800(4)

TRLB-1000-50-40 1000(5)

Remark For other dimensions, please contact IKO.

Introduction of Special Support ExamplesIntroducing special support examples for Ways for Cam Follower. A variety of shapes are supported in addition to the special support examples. For details, please contact IKO.

CF

CF

Way

Way

CF

CF

Way

Way

《Way A Type》《Way B Type》

CFCFKRCFSNUCFCR

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Note(1)　　 Minimum allowable value of chamfer dimension rRemarks1.　 Models with a stud diameter d1 of 4 mm or less have no oil hole. For models with a stud dia. 5 to 10mm, oil hole (re-greasing

fitting) is provided at the head. Other models are provided with an oil hole (grease nipple) at the head and an oil hole each on the outside surface and end surface of the stud.

2.　 Shield type models with a stud diameter d1 of 10mm or less and the sealed type models are provided with prepacked grease. Other models are not provided with prepacked grease. Perform proper lubrication for use.

Standard Type Cam Followers CF…B With Cage/Stud Head Hex Hole

Stud dia.

mmWith crowned

outer ring

Shield typeWith cylindrical

outer ringWith crowned

outer ringWith cylindrical

outer ring

Mass (Ref.)


g

3

4

5

6

8

CF 3 BR

CF 4 BR

CF 5 BR

CF 6 BR

CF 8 BRCF 8 BRM

CF 8 BCF 8 BM

CF 10 BRCF 10 BRMCF 10-1 BRCF 10-1 BRM

CF 12 BRCF 12-1 BR

CF 16 BR

CF 18 BR

CF 20 BRCF 20-1 BR

CF 24 BRCF 24-1 BR

CF 30 BRCF 30-1 BRCF 30-2 BR

CF 3 BUUR

CF 4 BUUR

CF 5 BUUR

CF 6 BUUR

CF 10 BUURCF 10 BUURMCF 10-1 BUURCF 10-1 BUURM

CF 8 BUURCF 8 BUURM

CF 8 BUUCF 8 BUUM

CF 10 BUUCF 10 BUUMCF 10-1 BUUCF 10-1 BUUM

CF 12 BUURCF 12-1 BUUR

CF 16 BUUR

CF 18 BUUR



CF 30 BUURCF 30-1 BUURCF 30-2 BUUR

CF 12 BUUCF 12-1 BUU

CF 16 BUU

CF 18 BUU



CF 30 BUUCF 30-1 BUUCF 30-2 BUU

CF 3 B

CF 4 B

CF 5 B

CF 6 B

CF 3 BUU

CF 4 BUU

CF 5 BUU

CF 6 BUU

CF 10 BCF 10 BMCF 10-1 BCF 10-1 BM

CF 12 BCF 12-1 B

CF 16 B

CF 18 B

CF 20 BCF 20-1 B

CF 24 BCF 24-1 B

CF 30 BCF 30-1 BCF 30-2 B

10

12

16

18

20

24

30

Sealed type

4.3 10

12

13

16

1919

22222626

3032

35

40

5247

6272

808590

7

8

9

11

1111

12121212

1414

18

20

2424

2929

353535

3 M 3×0.5

M 4×0.7

M 5×0.8

M 6×1

M 8×1.25M 8×1

M10×1.25M10×1M10×1.25M10×1

M12×1.5M12×1.5

M16×1.5

M18×1.5

M20×1.5M20×1.5

M24×1.5M24×1.5

M30×1.5M30×1.5M30×1.5

4

5

6

88

10101010

1212

16

18

2020

2424

303030

7.4

10.3

18.5

28.528.5

45456060

95105

170

250

460385

8151 140

1 8702 0302 220

Stud dia. 3−30mm

D C d1 G

CAM FOLLOWERS

CF … BR

H

B1

G1

D

d1

B B2

C1

G

C

g2

B3

g 1

R=500BR=500

H

C

B2

B1

G1

C1

D G

d 1

CF … BRStud dia d1　3-10mm Stud dia d1　12-30mm

5

6

7.5

8

10 10 12

12 12 12

13 13

17

19

21 21

25 25

32 32 32

9

11

13

16

20 20

23 23 23 23

25 25

32.5

36.5

40.5 40.5

49.5 49.5

63 63 63

6 6

8

8

9 9

1111

151515

0.5

0.5

0.5

0.6

0.6 0.6

0.6 0.6 0.6 0.6

0.6 0.6

0.8

0.8

0.8 0.8

0.8 0.8

1 1 1

44

4

6

66

66

666

33

3

3

44

44

444

2

2.5

3

3

4 4

4 4 4 4 6 6

6

8

8 8

12 12

17 17 17

0.2

0.3

0.3

0.3

0.3 0.3

0.3 0.3 0.3 0.3

0.6 0.6

0.6

1

1 1

1 1

1 1 1

6.8

8.3

9.3

11

13 13

16 16 16 16

21 21

26

29

34 34

40 40

49 49 49

0.34

0.78

1.6

2.7

6.5 7.1

13.8 14.7 13.8 14.7

21.9 21.9

58.5

86.2

119 119

215 215

438 438 438

1 500

2 070

2 520

3 660

4 2504 250

5 4305 4305 4305 430

7 9107 910

12 000

14 800

20 70020 700

30 50030 500

45 40045 40045 400

1 020

1 590

2 140

3 650

4 7404 740

6 8906 8906 8906 890

9 7909 790

18 300

25 200

34 60034 600

52 60052 600

85 10085 10085 100

384

　834

1 260

1 950

4 6204 620

6 8906 8906 8906 890

9 7909 790

18 300

25 200

34 60034 600

52 00052 000

85 10085 10085 100

8

9

10

12.2max

12.2max12.2max

13.2max13.2max13.2max13.2max

15.2max15.2max

19.6max

21.6max

25.6max25.6max

30.6max30.6max

37 max37 max37 max

17

20

23

28.2max

32.2max 32.2max

36.2max 36.2max 36.2max 36.2max

40.2max 40.2max

52.1max

58.1max

66.1max 66.1max

80.1max 80.1max

100 max100 max100 max

(1)


CF … B CF … BUUR CF … BUU

G1 B2 B3 C1 g1 g2 H rs minB B1

Mounting dimension

fMin.

mm

Maximum tightening

torque

N-m


C

N


C0

N

Maximum allowable static load

　N

CFCFKRCFSNUCFCR

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Stud dia.

mmWith crowned

outer ring




outer ring

Mass (Ref.)


g D C d1

6

8

10

12

16

18

20

24

30

CF 6 VBR

CF 8 VBRCF 8 VBRM

CF 10 VBRCF 10 VBRMCF 10-1 VBRCF 10-1 VBRM

CF 12 VBRCF 12-1 VBR

CF 16 VBR

CF 18 VBR



CF 30 VBRCF 30-1 VBRCF 30-2 VBR

CF 6 VBUUR

CF 8 VBUURCF 8 VBUURM

CF 10 VBUURCF 10 VBUURMCF 10-1 VBUURCF 10-1 VBUURM

CF 12 VBUURCF 12-1 VBUUR

CF 16 VBUUR

CF 18 VBUUR



CF 30 VBUURCF 30-1 VBUURCF 30-2 VBUUR

CF 6 VBUU

CF 8 VBUUCF 8 VBUUM

CF 10 VBUUCF 10 VBUUMCF 10-1 VBUUCF 10-1 VBUUM

CF 12 VBUUCF 12-1 VBUU

CF 16 VBUU

CF 18 VBUU



CF 30 VBUUCF 30-1 VBUUCF 30-2 VBUU

CF 6 VB

CF 8 VBCF 8 VBM

CF 10 VBCF 10 VBMCF 10-1 VBCF 10-1 VBM

CF 12 VBCF 12-1 VB

CF 16 VB

CF 18 VB

CF 20 VBCF 20-1 VB

CF 24 VBCF 24-1 VB

CF 30 VBCF 30-1 VBCF 30-2 VB

Sealed type

19

2929

46466161

97107

173

255

465390

8201 140

1 8702 0302 220

16

1919

22222626

3032

35

40

5247

6272

808590

11

1111

12121212

1414

18

20

2424

2929

353535

6

8 8

10101010

1212

16

18

2020

2424

303030

Note(1)　　 Minimum allowable value of chamfer dimension rRemarks1. Models with a stud diameter d1 of 10 mm or less have an oil hole (re-greasing fitting) at the head. Other models are provided with

an oil hole (grease nipple) at the head and an oil hole each on the outside surface and end surface of the stud. 2. Provided with prepacked grease.

Stud dia. 6−30mm

CAM FOLLOWERS

Standard Type Cam Followers CF…B Full Complement Type/Stud Head Hex Hole

CF … VBR

H

B1

G1

D

d1

B B2

C1

G

C

g2

B3

g 1

R=500BR=500

H

C

B2

B1

G1

C1

D G

d 1

CF … VBRStud dia. d1　6-10mm Stud dia. d1　12-30mm

G1

8

1010

12121212

1313

17

19

2121

2525

323232

B2

16

20 20

23 23 23 23

25 25

32.5

36.5

40.5 40.5

49.5 49.5

63 63 63

B3

66

8

8

99

1111

151515

3

44

4444

66

6

8

88

1212

171717

C1 g1 g2 H

0.6

44

4

6

66

66

666

33

3

3

44

44

444

0.6 0.6

0.6 0.6 0.6 0.6

0.6 0.6

0.8

0.8

0.8 0.8

0.8 0.8

1 1 1

0.3

0.3 0.3

0.3 0.3 0.3 0.3

0.6 0.6

0.6

1

1 1

1 1

1 1 1

rs min

11

1313

16161616

2121

26

29

3434

4040

494949

2.7

6.5 7.1

13.8 14.7 13.8 14.7

21.9 21.9

58.5

86.2

119 119

215 215

438 438 438

6 980

8 1708 170

9 5709 5709 5709 570

13 50013 500

20 700

25 300

33 20033 200

46 60046 600

67 70067 70067 700

8 500

11 20011 200

14 50014 50014 50014 500

19 70019 700

37 600

51 300

64 50064 500

92 00092 000

144 000144 000144 000

1 950

4 6204 620

8 650 8 6508 650 8 650

13 20013 200

23 200

31 100

37 500 37 500

52 00052 000

85 900 85 90085 900

Bmax

12.2

12.212.2

13.213.213.213.2

15.215.2

19.6

21.6

25.625.6

30.630.6

373737

B1max

28.2

32.2 32.2

36.2 36.2 36.2 36.2

40.2 40.2

52.1

58.1

66.1 66.1

80.1 80.1

100 100 100

(1)

Mounting dimension

fMin.

mm

Maximum tightening

torque

N-m


C

N


C0

N


　N


G

M 6×1

M 8×1.25M 8×1

M10×1.25M10×1M10×1.25M10×1

M12×1.5M12×1.5

M16×1.5

M18×1.5

M20×1.5M20×1.5

M24×1.5M24×1.5

M30×1.5M30×1.5M30×1.5

CF … VB CF … VBUUR CF … VBUU

CFCFKRCFSNUCFCR

I


Stud dia.

mm

Mass (Ref.)


g

3

4

5

6

8

10

12

16

18

20

CF 3 FBR

CF 4 FBR

CF 5 FBR

CF 6 FBUUR

CF 8 FBUUR

CF 16 FBUUR

CF 18 FBUUR

CF 3 FB

CF 4 FB

CF 5 FB

CF 3 FBUUR

CF 4 FBUUR

CF 5 FBUUR

CF 3 FBUU

CF 4 FBUU

CF 5 FBUU

CF 6 FB

CF 8 FB

CF 16 FB

CF 18 FB

4.3

7.4

10.3

18.5

28.5

45 60

95105

170

250

460385

10

12

13

16

19

2226

3032

35

40

5247

7

8

9

11

11

12

14

18

20

24

3

4

5

6

8

10

12

16

18

20

M 3×0.5

M 4×0.7

M 5×0.8

M 6×1

M 8×1.25

M10×1.25

M12×1.5

M16×1.5

M18×1.5

M20×1.5

5

6

7.5

8

10

12

13

17

19

21




outer ring

Sealed typeWith cylindrical

outer ring

Note(1)　　 Minimum allowable value of chamfer dimension rRemarks1. Models with a stud diameter d1 of 4 mm or less have no oil hole. For models with a stud dia. 5 to 10 mm, oil hole (re-greasing

fitting) is provided at the head. Other models are provided with an oil hole (grease nipple) at the head and an oil hole each on the outside surface and end surface of the stud.

2. Shield type models with a stud diameter d1 of 10 mm or less and the sealed type models are provided with prepacked grease. Other models are not provided with prepacked grease. Perform proper lubrication for use.

D C d1 G G1

CAM FOLLOWERS

Standard Type Cam Followers CF…B / Stainless Steel Made With Cage/Stud Head Hex Hole

Stud dia. 3−20mm

CF 10 FBRCF 10-1 FBR

CF 12 FBR CF 12-1 FBR

CF 20 FBRCF 20-1 FBR

CF 10 FBCF 10-1 FB

CF 12 FB CF 12-1 FB

CF 20 FBCF 20-1 FB

CF 10 FBUURCF 10-1 FBUUR



CF 6 FBUU

CF 8 FBUU

CF 16 FBUU

CF 18 FBUU

CF 10 FBUUCF 10-1 FBUUCF 12 FBUUCF 12-1 FBUU

CF 20 FBUUCF 20-1 FBUU

H

B1

D

d1

B B2

C1

G

C

g2

B3

g 1

G1

R=500BR=500

H

C

B2

B1

G1

C1

D G

d 1

CF … FBRStud dia. d1　3-10mm

CF … FBRStud dia. d1　12-20mm

CF 6 FBR

CF 8 FBR

CF 16 FBR

CF 18 FBR

9

11

13

16

20

23

25

32.5

36.5

40.5

6

8

8

9

0.5

0.5

0.5

0.6

0.6

0.6

0.6

0.8

0.8

0.8

4

4

6

8

3

3

3

4

2

2.5

3

3

4

5

6

6

8

8

0.2

0.3

0.3

0.3

0.3

0.3

0.6

0.6

1

1

6.8

8.3

9.3

11

13

16

21

26

29

34

0.34

0.78

1.6

2.7

6.5

13.8

21.9

58.5

86.2

119

1 200

1 650

1 930

2 930

3 400

4 340

6 330

9 620

11 800

16 500

813

1 270

1 730

2 920

3 790

5 510

7 830

14 700

20 200

27 700

384

834

1 260

1 950

3 790

5 510

7 830

14 700

20 200

27 700

(1)


8

9

10

12.2max

12.2max

13.2max

15.2max

19.6max

21.6max

25.6max

17

20

23

28.2max

32.2max

36.2max

40.2max

52.1max

58.1max

66.1max

CF … FB CF … FBUUR CF … FBUU

B2 B3 C1 g1 g2 rs min B B1

Mounting dimension

fMin.

mm

Maximum tightening

torque

N-m


C

N


C0

N


　N

H

f

CFCFKRCFSNUCFCR

I

I321N=0.102kgf=0.2248lbs.1mm=0.03937inchI31

Stud diameter

mm

Identification number(1) Mass (Ref.)

Boundary dimensions　mm Mounting dimension

fMin. mm

Maximum tightening

torque

N-m

Basic dynamic

load rating

CN

Basic static load

rating

C0

N


　N

Shield type Sealed typeD C d1 G G1

Bmax

B1max B2 B3 C1 g1 g2 H (2)

rs minCrowned outer ring Cylindrical outer ring Crowned outer ring Cylindrical outer ring g

10 CFKR 22 RCFKR 26 R

CFKR 22CFKR 26

CFKR 22 UURCFKR 26 UUR

CFKR 22 UUCFKR 26 UU

4358

2226 12 10 M10×1.0 12 13.2 36.2 23 0.6 3 5 0.3 16 13.0 5 430 6 890 6 890


CFKR 30CFKR 32



94104

3032 14 12 M12×1.5 13 15.2 40.2 25 6 0.6 4 3 6 0.6 21 21.9 7 910 9 790 9 790

16 CFKR 35 R CFKR 35 CFKR 35 UUR CFKR 35 UU 165 35 18 16 M16×1.5 17 19.6 52.1 32.5 8 0.8 4 3 8 0.6 26 58.5 12 000 18 300 18 300

18 CFKR 40 R CFKR 40 CFKR 40 UUR CFKR 40 UU 248 40 20 18 M18×1.5 19 21.6 58.1 36.5 8 0.8 6 3 8 1 29 86.2 14 800 25 200 25 200


CFKR 47CFKR 52



378453

4752 24 20 M20×1.5 21 25.6 66.1 40.5 9 0.8 6 4 10 1 34 119 20 700 34 600 34 600


CFKR 62CFKR 72



7951 120

6272 29 24 M24×1.5 25 30.6 80.1 49.5 11 0.8 6 4 14 1 40 215 30 500 52 600 52 000

30CFKR 80 RCFKR 85 RCFKR 90 R

CFKR 80CFKR 85CFKR 90

CFKR 80 UURCFKR 85 UURCFKR 90 UUR

CFKR 80 UUCFKR 85 UUCFKR 90 UU

1 8602 0202 210

808590

35 30 M30×1.5 32 37 100 63 15 1 6 4 14 1 49 438 45 400 85 100 85 100

Note(1)　　The identification number indicates the outer ring outside diameter.　　(2)　　Minimum allowable value of chamfer dimension r.Remark Grease is pre-packed if the stud diameter d1 of the shield type is 10 mm or less or if the seal structure is the sealed type. Other models

are not provided with pre-packed grease. Perform proper lubrication for use.

CAM FOLLOWERS

Standard Type Cam Followers CFKR With Cage/Stud Head Hex Hole

Stud dia. 10−30mm Outside dia. of outer ring D 22, 26 mm

R=500

B1

B B2

C1

G1

d 1

H

G

g 1

grease nipple

C

D

H

CFKR CFKR … UUR CFKR … UU

CAM FOLLOWERS

f

r

r

r

r

R=500

Outside dia. of outer ring D 30 - 90 mm

R=500

grease nipple

B B2

C1

G

C

g2

B3

H

B1

G1

D

H

g 1

d 1

CFKR … RCFKR … R

CFCFKRCFSNUCFCR

I

I341N=0.102kgf=0.2248lbs.1mm=0.03937inchI33

Stud diameter

mm


Boundary dimensions　mm Mounting dimension

fMin. mm

Maximum tightening

torque

N-m

Basic dynamic

load rating

CN

Basic static load

rating

C0

N


　N

Shield type Sealed typeD C d1 G G1

Bmax

B1max B2 B3 C1 g1 g2 H (2)

rs minCrowned outer ring Cylindrical outer ring Crowned outer ring Cylindrical outer ring g

10 CFKR 22 VRCFKR 26 VR

CFKR 22 VCFKR 26 V

CFKR 22 VUURCFKR 26 VUUR

CFKR 22 VUUCFKR 26 VUU

44 59

2226 12 10 M10×1.0 12 13.2 36.2 23 0.6 3 5 0.3 16 13.0 9 570 14 500 7 920


CFKR 30 VCFKR 32 V



96 106

3032 14 12 M12×1.5 13 15.2 40.2 25 6 0.6 4 3 6 0.6 21 21.9 13 500 19 700 13 200

16 CFKR 35 VR CFKR 35 V CFKR 35 VUUR CFKR 35 VUU 168 35 18 16 M16×1.5 17 19.6 52.1 32.5 8 0.8 4 3 8 0.6 26 58.5 20 700 37 600 23 200

18 CFKR 40 VR CFKR 40 V CFKR 40 VUUR CFKR 40 VUU 253 40 20 18 M18×1.5 19 21.6 58.1 36.5 8 0.8 6 3 8 1 29 86.2 25 300 51 300 31 100


CFKR 47 VCFKR 52 V



383 458

4752 24 20 M20×1.5 21 25.6 66.1 40.5 9 0.8 6 4 10 1 34 119 33 200 64 500 37 500


CFKR 62 VCFKR 72 V



8001 120

6272 29 24 M24×1.5 25 30.6 80.1 49.5 11 0.8 6 4 14 1 40 215 46 600 92 000 52 000

30CFKR 80 VRCFKR 85 VRCFKR 90 VR

CFKR 80 VCFKR 85 VCFKR 90 V

CFKR 80 VUURCFKR 85 VUURCFKR 90 VUUR

CFKR 80 VUUCFKR 85 VUUCFKR 90 VUU

1 8602 0202 210

808590

35 30 M30×1.5 32 37 100 63 15 1 6 4 14 1 49 438 67 700 144 000 85 900

CAM FOLLOWERS

Standard Type Cam Followers CFKR Full Complement Type/Stud Head Hex Hole

Note(1)　　The identification number indicates the outer ring outside diameter.　　(2)　　Minimum allowable value of chamfer dimension r.Remark Provided with prepacked grease.

Stud dia.10−30mm Outside dia. of outer ring D 22, 26 mm

R=500

B1

B B2

C1

G1

d 1

H

G

g 1

C

D

H

grease nipple

CFKR … V CFKR … VUUR CFKR … VUU

f

r

r

r

r

R=500

CAM FOLLOWERS

Outside dia. of outer ring D 30 - 90 mm

R=500 B B2

C1

G

C

g2

B3

H

B1

G1

D

H

g 1

d 1

grease nipple

CFKR … VRCFKR … VR

CFCFKRCFSNUCFCR

I


Outside diameter of

eccentric collarmm





outer ring

Mass (Ref.)


g

9

11

13

16

22

24

27

33

41

CFE 6 BR

CFE 8 BR

CFE 10 BRCFE 10-1 BR


CFE 16 BR

CFE 18 BR



CFE 30 BRCFE 30-1 BRCFE 30-2 BR

CFE 6 BUUR

CFE 8 BUUR

CFE 10 BUURCFE 10-1 BUUR


CFE 16 BUUR

CFE 18 BUUR

CFE 6 BUU

CFE 8 BUU

CFE 10 BUUCFE 10-1 BUU


CFE 16 BUU

CFE 18 BUU

CFE 6 B

CFE 8 B

CFE 10 BCFE 10-1 B

CFE 12 BCFE 12-1 B

CFE 16 B

CFE 18 B



CFE 30 BUURCFE 30-1 BUURCFE 30-2 BUUR



CFE 30 BUUCFE 30-1 BUUCFE 30-2 BUU

CFE 20 BCFE 20-1 B

CFE 24 BCFE 24-1 B

CFE 30 BCFE 30-1 BCFE 30-2 B

Sealed type

20.5

32

49.5 65

105 115

190

280

500 425

895 1 220

2 030 2 190 2 380

16

19

2226

3032

35

40

5247

6272

808590

11

11

1212

1414

18

20

2424

2929

353535

9

11

1313

1616

22

24

2727

3333

414141

Note(1)　　 Minimum allowable value of chamfer dimension rRemarks1. Models with a thread diameter G of 10 mm or less have an oil hole (re-greasing fitting) at the head. Other models are provided with

an oil hole (grease nipple) at the head and an oil hole on the end surface of the stud. 2. Shield type models with a stud thread diameter G of 10 mm or less and the sealed type models are provided with prepacked

grease. Other models are not provided with prepacked grease. Perform proper lubrication for use.

Outside diameter of eccentric collar 9−41mm

D C de

CAM FOLLOWERS

Eccentric Type Cam Followers CFE…B With Cage/Stud Head Hex Hole

B

R=500

H

C

B2

B1

G1

C1

D G de

B3

(Ecc

entri

city)

ε

CFE … BROutside diameter of eccentric collar de　9-13mm

8.5

10.5

12.5 12.5

13.5 13.5

17

19

21 21

16

20

23 23

25 25

32.5

36.5

40.5 40.5

7.5

9.5

10.510.5

11.511.5

15.5

17.5

19.519.5

3

4

44

66

6

8

88

H

0.6

44

4

6

66

0.4

0.4

0.40.4

0.80.8

0.8

0.8

0.80.8

0.6

0.6 0.6

0.6 0.6

0.8

0.8

0.8 0.8

0.3

0.3

0.3 0.3

0.6 0.6

0.6

1

1 1

11

13

1616

2121

26

29

3434

2.7

6.5

13.8 13.8

21.9 21.9

58.5

86.2

119 119

3 660

4 250

5 4305 430

7 9107 910

12 000

14 800

20 70020 700

3 650

4 740

6 8906 890

9 7909 790

18 300

25 200

34 60034 600

1 950

4 620

6 8906 890

9 7909 790

18 300

25 200

34 60034 600

12.2

12.2

13.2 13.2

15.2 15.2

19.6

21.6

25.6 25.6

28.2

32.2

36.2 36.2

40.2 40.2

52.1

58.1

66.1 66.1

(1)


M 6×1

M 8×1.25

M10×1.25M10×1.25

M12×1.5M12×1.5

M16×1.5

M18×1.5

M20×1.5M20×1.5

24 24

49.5 49.5

25.525.5

1212

66

0.80.8

0.8 0.8

1 1

4040

215 215

30 50030 500

52 60052 600

52 00052 000

30.6 30.6

80.1 80.1

M24×1.5M24×1.5

30.5 30.5 30.5

63 63 63

32.532.532.5

171717

666

1.51.51.5

1 1 1

1 1 1

494949

438 438 438

45 40045 40045 400

85 10085 10085 100

85 10085 10085 100

37 37 37

100100100

M30×1.5M30×1.5M30×1.5

εB3 B2 C1 g1 G1 rs minB

maxB1

max

Mounting dimension

fMin.

mm

Maximum tightening

torque

N-m


C

N


C0

N


　N

G

Ecce

ntric

ity

C

R=500G1B3

C1

B2B

de

g1

G

B1

D

H

CFE … B CFE … BUU

f

CFE … BR

r

r

r

r

(Ecc

entri

city)

ε

Outside diameter of eccentric collar de　16-41mm

CFCFKRCFSNUCFCR

I


Outside diameter of

eccentric collarmm





outer ring

Mass (Ref.)


g

9

11

13

16

22

24

27

33

41

CFE 6 VBR

CFE 8 VBR

CFE 10 VBRCFE 10-1 VBR


CFE 16 VBR

CFE 18 VBR



CFE 30 VBRCFE 30-1 VBRCFE 30-2 VBR

CFE 6 VBUUR

CFE 8 VBUUR

CFE 10 VBUURCFE 10-1 VBUUR


CFE 16 VBUUR

CFE 18 VBUUR

CFE 6 VBUU

CFE 8 VBUU

CFE 10 VBUUCFE 10-1 VBUU


CFE 16 VBUU

CFE 18 VBUU

CFE 6 VB

CFE 8 VB

CFE 10 VBCFE 10-1 VB


CFE 16 VB

CFE 18 VB



CFE 30 VBUURCFE 30-1 VBUURCFE 30-2 VBUUR



CFE 30 VBUUCFE 30-1 VBUUCFE 30-2 VBUU



CFE 30 VBCFE 30-1 VBCFE 30-2 VB

Sealed type

21

32.5

50.5 66

107 117

193

285

505 430

900 1 220

2 030 2 190 2 380

16

19

2226

3032

35

40

5247

6272

808590

11

11

1212

1414

18

20

2424

2929

353535

9

11

1313

1616

22

24

2727

3333

414141

Note(1)　　 Minimum allowable value of chamfer dimension rRemarks1. Models with a thread diameter G of 10 mm or less have an oil hole (re-greasing fitting) at the head. Other models are provided with

an oil hole (grease nipple) at the head and an oil hole on the end surface of the stud. 2. Provided with prepacked grease.

D C de

CAM FOLLOWERS

Eccentric Type Cam Followers CFE…B Full Complement Type/Stud Head Hex Hole

Outside diameter of eccentric collar 9−41mm

B

R=500

H

C

B2

B1

G1

C1

D G de

B3

(Ecc

entri

city)

ε

CFE … VBROutside diameter of eccentric collar de　9-13mm

8.5

10.5

12.5 12.5

13.5 13.5

17

19

21 21

16

20

23 23

25 25

32.5

36.5

40.5 40.5

7.5

9.5

10.510.5

11.511.5

15.5

17.5

19.519.5

3

4

44

66

6

8

88

H

0.6

44

4

6

66

0.4

0.4

0.40.4

0.80.8

0.8

0.8

0.80.8

0.6

0.6 0.6

0.6 0.6

0.8

0.8

0.8 0.8

0.3

0.3

0.3 0.3

0.6 0.6

0.6

1

1 1

11

13

1616

2121

26

29

3434

2.7

6.5

13.8 13.8

21.9 21.9

58.5

86.2

119 119

6 980

8 170

9 5709 570

13 50013 500

20 700

25 300

33 20033 200

8 500

11 200

14 50014 500

19 70019 700

37 600

51 300

64 50064 500

1 950

4 620

8 6508 650

13 20013 200

23 200

31 100

37 50037 500

12.2

12.2

13.2 13.2

15.2 15.2

19.6

21.6

25.6 25.6

28.2

32.2

36.2 36.2

40.2 40.2

52.1

58.1

66.1 66.1

(1)


M 6×1

M 8×1.25

M10×1.25M10×1.25

M12×1.5M12×1.5

M16×1.5

M18×1.5

M20×1.5M20×1.5

24 24

49.5 49.5

25.525.5

1212

66

0.80.8

0.8 0.8

1 1

4040

215 215

46 60046 600

92 00092 000

52 00052 000

30.6 30.6

80.1 80.1

M24×1.5M24×1.5

30.5 30.5 30.5

63 63 63

32.532.532.5

171717

666

1.51.51.5

1 1 1

1 1 1

494949

438 438 438

67 70067 70067 700

144 000144 000144 000

85 90085 90085 900

37 37 37

100100100

M30×1.5M30×1.5M30×1.5

εB3 B2 C1 g1 G1 rs minB

maxB1

max

Mounting dimension

fMin.

mm

Maximum tightening

torque

N-m


C

N


C0

N


　N

G

Ecce

ntric

ity

C

g1

deG

B1

C1

B2B

R=500G1B3

D

H

CFE … VB CFE … VBUUCFE … VBR

fr

r

r

r

(Ecc

entri

city)

ε

Outside diameter of eccentric collar de　16-41mm

CFCFKRCFSNUCFCR

I


Note(1)　　The identification number indicates the outer ring outside diameter.　　(2)　　Minimum allowable value of chamfer dimension r.Remark Grease is pre-packed if the eccentric collar outer diameter de of the shield type is 13 mm or less or if the seal structure is the sealed

type. Other models are not provided with pre-packed grease. Perform proper lubrication for use.

CAM FOLLOWERS

Eccentric Type Cam Followers CFKRE With Cage/Double Hex Hole

Outside diameter of eccentric collar 13−35mmCFKRE … R

Outside diameter of eccentric collar de　13mmCFKRE … UURCFKRE CFKRE … UUCFKRE … R

Outside diameter of eccentric collar de　15〜35mm

C

B

B1

B3

B2

G1

C1

G

g 1

d eD

R=500

grease nipple

H

R=500

r

rr

r

ε(E

ccen

tric

ity)

f

H

C

B

B1

B3

B2

G1

C1

G

g 1

d eD

R=500

grease nipple

HH

C

B

B1

B3

B2

G1

C1

G

g 1

d eD

R=500

grease nipple

H

R=500

r

rr

r

ε(E

ccen

tric

ity)

f

H

C

B

B1

B3

B2

G1

C1

G

g 1

d eD

R=500

grease nipple

HH

Outside diameter of

eccentric collarmm



Ecce

ntric

ity Mounting dimension

f

Maximum tightening

torque


C


C0

Maximum allowable static loadShield type Sealed type

g D C de G G1 Bmax

B1max

B2 B3 C1 g1 H (1)rs min

Crowned outer ring

Cylindrical outer ring

Crowned outer ringCylindrical outer

ringε Min.

mm N-m N N N

13 CFKRE 22 RCFKRE 26 R

CFKRE 22CFKRE 26

CFKRE 22 UURCFKRE 26 UUR

CFKRE 22 UUCFKRE 26 UU

4762

2226

12 13 M10×1.0 12 13.2 36.2 23 10 0.6 3 5 0.3 0.5 16 13.0 5 430 6 890 6 890

15 CFKRE 30 R CFKRE 32 R

CFKRE 30 CFKRE 32

CFKRE 30 UUR CFKRE 32 UUR

CFKRE 30 UU CFKRE 32 UU

100110

30 32

14 15 M12×1.5 13 15.2 40.2 25 11 0.6 4 6 0.6 0.5 21 21.9 7 910 9 790 9 790

20 CFKRE 35 R CFKRE 35 CFKRE 35 UUR CFKRE 35 UU 177 35 18 20 M16×1.5 17 19.6 52.1 32.5 14 0.8 4 8 0.6 1 26 58.5 12 000 18 300 18 300

22 CFKRE 40 R CFKRE 40 CFKRE 40 UUR CFKRE 40 UU 264 40 20 22 M18×1.5 19 21.6 58.1 36.5 16 0.8 6 8 1 1 29 86.2 14 800 25 200 25 200


CFKRE 47 CFKRE 52



397472

47 52

24 24 M20×1.5 21 25.6 66.1 40.5 18 0.8 6 10 1 1 34 119 20 700 34 600 34 600


CFKRE 62 CFKRE 72



8231 150

62 72

29 28 M24×1.5 25 30.6 80.1 49.5 22 0.8 6 14 1 1 40 215 30 500 52 600 52 000

35CFKRE 80 R CFKRE 85 R CFKRE 90 R

CFKRE 80 CFKRE 85 CFKRE 90

CFKRE 80 UUR CFKRE 85 UUR CFKRE 90 UUR

CFKRE 80 UU CFKRE 85 UU CFKRE 90 UU

1 9202 0802 270

80 85 90

35 35 M30×1.5 32 37 100 63 29 1 6 14 1 1.5 49 438 45 400 85 100 85 100

CFCFKRCFSNUCFCR

I


Note(1)　　The identification number indicates the outer ring outside diameter.　　(2)　　Minimum allowable value of chamfer dimension r.Remark Grease is prepacked.

CAM FOLLOWERS

Eccentric Type Cam Followers CFKRE Full complement/Double Hex Hole

Outside diameter of eccentric collar 13−35mmCFKRE … VR

Outside diameter of eccentric collar de　13mmCFKRE … VUUCFKRE … V CFKRE … VUURCFKRE … VR

Outside diameter of eccentric collar de　15〜35mm

C

B

B1

B3

B2

G1

C1

C

B

B1

B3

B2

G1

C1

G

g 1 g 1

d eD

R=500R=500

HG d e H

R=500

r

rr

r

ε(E

ccen

tric

ity)

f

H D H

grease nipple grease nipple

C

B

B1

B3

B2

G1

C1

C

B

B1

B3

B2

G1

C1

G

g 1 g 1

d eD

R=500R=500

HG d e H

R=500

r

rr

r

ε(E

ccen

tric

ity)

f

H D H

grease nipple grease nipple

Outside diameter of

eccentric collarmm



Ecce

ntric

ity Mounting dimension

f

Maximum tightening

torque


C


C0

Maximum allowable static loadShield type Sealed type

g D C de G G1 Bmax

B1max

B2 B3 C1 g1 H (2)rs min

Crowned outer ring


Crowned outer ringCylindrical outer

ringε Min.

mm N-m N N N

13 CFKRE 22 VRCFKRE 26 VR

CFKRE 22 VCFKRE 26 V

CFKRE 22 VUURCFKRE 26 VUUR

CFKRE 22 VUUCFKRE 26 VUU

4863

2226 12 13 M10×1.0 12 13.2 36.2 23 10 0.6 3 5 0.3 0.5 16 13.0 9 570 14 500 7 920

15 CFKRE 30 VR CFKRE 32 VR

CFKRE 30 V CFKRE 32 V

CFKRE 30 VUUR CFKRE 32 VUUR

CFKRE 30 VUU CFKRE 32 VUU

101111

30 32 14 15 M12×1.5 13 15.2 40.2 25 11 0.6 4 6 0.6 0.5 21 21.9 13 500 19 700 13 200

20 CFKRE 35 VR CFKRE 35 V CFKRE 35 VUUR CFKRE 35 VUU 180 35 18 20 M16×1.5 17 19.6 52.1 32.5 14 0.8 4 8 0.6 1 26 58.5 20 700 37 600 23 200

22 CFKRE 40 VR CFKRE 40 V CFKRE 40 VUUR CFKRE 40 VUU 269 40 20 22 M18×1.5 19 21.6 58.1 36.5 16 0.8 6 8 1 1 29 86.2 25 300 51 300 31 100





402477

47 52 24 24 M20×1.5 21 25.6 66.1 40.5 18 0.8 6 10 1 1 34 119 33 200 64 500 37 500





8281 150

62 72 29 28 M24×1.5 25 30.6 80.1 49.5 22 0.8 6 14 1 1 40 215 46 600 92 000 52 000

35CFKRE 80 VR CFKRE 85 VR CFKRE 90 VR

CFKRE 80 V CFKRE 85 V CFKRE 90 V

CFKRE 80 VUUR CFKRE 85 VUUR CFKRE 90 VUUR

CFKRE 80 VUU CFKRE 85 VUU CFKRE 90 VUU

1 9202 0802 270

80 85 90

35 35 M30×1.5 32 37 100 63 29 1 6 14 1 1.5 49 438 67 700 144 000 85 900

CFCFKRCFSNUCFCR

I


Stud dia.

mmWith crowned

outer ring




outer ring

Mass (Ref.)


g

6

8

10

12

16

18

CFES 6 BR

CFES 8 BR

CFES 10 BRCFES 10-1 BR

CFES 12 BRCFES 12-1 BR

CFES 16 BR

CFES 18 BR

CFES 6 BUUR

CFES 8 BUUR

CFES 10 BUURCFES 10-1 BUUR

CFES 12 BUURCFES 12-1 BUUR

CFES 16 BUUR

CFES 18 BUUR

CFES 6 BUU

CFES 8 BUU

CFES 10 BUUCFES 10-1 BUU

CFES 12 BUUCFES 12-1 BUU

CFES 16 BUU

CFES 18 BUU

CFES 6 B

CFES 8 B

CFES 10 BCFES 10-1 B

CFES 12 BCFES 12-1 B

CFES 16 B

CFES 18 B

Sealed type

18.5

28.5

45 60

95 105

170

250

16

19

2226

3032

35

40

11

11

1212

1414

18

20

6

8

1010

1212

16

18


an oil hole (grease nipple) at the head and an oil hole each on the outside surface and end surface of the stud. 2. Shield type models with a stud diameter d1 of 10 mm or less and the sealed type models are provided with prepacked grease.

Other models are not provided with prepacked grease. Perform proper lubrication for use.

Stud dia. 6−18mm

D C d1

Solid Eccentric Stud Type Cam Followers

CAM FOLLOWERS

B

R=500

H

C

B1

B2

G1

C1

D G

d 1

(Ecc

entri

city)

ε

CFES … BRStud dia. d1　6-10mm

With Cage/Stud Head Hex Hole

8

10

1212

1313

17

19

16

20

23 23

25 25

32.5

36.5

66

8

8

3

4

44

66

6

8

0.6

44

4

6

33

3

3

0.6

0.60.6

0.60.6

0.8

0.8

0.3

0.3

0.3 0.3

0.6 0.6

0.6

1

11

13

1616

2121

26

29

2.7

6.5

13.8 13.8

21.9 21.9

58.5

86.2

3 660

4 250

5 4305 430

7 9107 910

12 000

14 800

3 650

4 740

6 8906 890

9 7909 790

18 300

25 200

1 980

4 670

6 8906 890

9 7909 790

18 300

25 200

12.2

12.2

13.213.2

15.215.2

19.6

21.6

28.2

32.2

36.236.2

40.240.2

52.1

58.1

(1)


M 6×1

M 8×1.25

M10×1.25M10×1.25

M12×1.5M12×1.5

M16×1.5

M18×1.5

Eccentricity

ε

0.25

0.25

0.30.3

0.40.4

0.5

0.6

G1 B2 B3 C1 g1 g2 H rs minBmax

B1max

Mounting dimension

fMin.

mm

Maximum tightening

torque

N-m


C

N


C0

N


　N

G

CFES … BR CFES … B CFES … BUU

Cr

r

r

r

ε （E

ccen

tric

ity）

H

GD

g2

g 1

d 1

B3

C1

BB1

B2

G1

R=500 R=500

f

r

r

r

r

f

(Ecc

entri

city)

ε

Stud dia. d1　12-18mm

CFCFKRCFSNUCFCR

I


45 60

28.5

18.5

22

26

19

16

12

12

11

11

10

10

8

6

M10×1.25

M10×1.25

M 8×1.25

M 6×1

12 12

10

　8

95

105

170

250

460

385

35

40

52

47

18

20

24

24

16

18

20

20

17

19

21

21

M16×1.5

M18×1.5

M20×1.5

M20×1.5

30

32

14

14

12

12

M12×1.5

M12×1.5

13 13

6 CF 6 WBUURCF 6 WBR

8 CF 8 WBUURCF 8 WBR

10

CF 10 WBUUR

CF 10-1 WBUUR

CF 12 WBUUR

CF 12-1 WBUUR

CF 10 WBR

CF 10-1 WBR

CF 12 WBR

CF 12-1 WBR

CF 16 WBR

CF 18 WBR

CF 20 WBR

CF 20-1 WBR

CF 16 WBUUR

CF 18 WBUUR

CF 20 WBUUR

CF 20-1 WBUUR

12

16

18

20

3

4

5

CF 3 WBR CF 3 WBUUR 4.3 10 7 3 5M 3×0.5

CF 4 WBR CF 4 WBUUR 7.4 12 8 4 6M 4×0.7

CF 5 WBR CF 5 WBUUR 10.3 13 9 5 7.5M 5×0.8

CAM FOLLOWERS

Thrust Disk Type Cam Followers With Cage/Stud Head Hex Hole

Stud dia. 3−20mm

Stud dia.

mm


Shield type Sealed type

Mass (Ref.)

g

　　　　　　　　Boundary dimensions　mm

G1GD C d1

Remarks1. Models with a stud diameter d1 of 4 mm or less have no oil hole. For Models with a stud dia. 5 to 10 mm, oil hole (re-greasing fitting) is provided at the head. Other models are provided with an oil hole (grease nipple) at the head and an oil hole each on the outside surface and end surface of the stud.

2. Shield type models with a stud diameter d1 of 10 mm or less and the sealed type models are provided with prepacked grease. Other models are not provided with prepacked grease. Perform proper lubrication for use.

CF … WBR CF … WBR

R=500

g 1

B3

g2

C

G

C1

B2B

d1

D

G1

B1

H

BR＝500

H

C

B2

B1

G1

C1

D G

d 1

Stud dia. d1　3-10mm Stud dia. d1　12-20mm

28.2max 16 0.6 3 11 2.7 3 660 3 650 1 950

32.2max 20 0.6 4 13 6.5 4 250 4 740 4 620

36.2max36.2max

0.6

0.6

4　4

16

16

6 890

6 890

13.8

13.8

5 430

5 430

6 890

6 890

12.2max

12.2max

13.2max13.2max

15.2max15.2max

40.2max40.2max

25

25

6

6

4

4

0.6

0.6

3

3

6

6

21

21

9 790

9 790

21.9

21.9

7 910

7 910

9 790

9 790

32.5

36.5

40.5 40.5

8

8

9

9

0.8

0.8

0.8

0.8

4

6

6

6

3

3

4

4

6

8

8

8

26

29

34

34

58.5

86.2

119

119

12 000

14 800

20 700

20 700

18 300

25 200

34 600

34 600

18 300

25 200

34 600

34 600

19.6max

21.6max

25.6max25.6max

52.1max

58.1max

66.1max66.1max

23

23

8 17 9 0.5 2 6.8 0.34 1 500 1 020 384

9 20 11 0.5 2.5 8.3 0.78 2 070 1 590 834

10 23 13 0.5 3 9.3 1.6 2 520 2 140 1 260

H

CF … WBUUR

B3B2 C1 g1 g2B B1

Mounting dimension

fMin.

mm

Maximum tightening

torque

N-m


C

N


C0

N


　N

f

CFCFKRCFSNUCFCR

I


3

4

5

CF 3 FWBR CF 3 FWBUUR 4.3 10 7 3 5M 3×0.5

CF 4 FWBR CF 4 FWBUUR 7.4 12 8 4 6M 4×0.7

CF 5 FWBR CF 5 FWBUUR 10.3 13 9 5 7.5M 5×0.8

Stud dia.

mm



Mass (Ref.)

g


G1GD C d1

Remarks1. Models with a stud diameter d1 of 4 mm or less have no oil hole. For Models with a stud dia. 5 mm, oil hole (re-greasing fitting) is provided at the head.

2. Provided with prepacked grease.

Stud dia. 3−5mm

CAM FOLLOWERS

Thrust Disk Type Cam Followers / Stainless Steel Made With Cage/Stud Head Hex Hole

CF … FWBR

8 17 9 0.5 2 6.8 0.34 1 200 813 384

9 20 11 0.5 2.5 8.3 0.78 1 650 1 270 834

10 23 13 0.5 3 9.3 1.6 1 930 1 730 1 260

HB3B2 C1 g1 g2B B1

Mounting dimension

fMin.

mm

Maximum tightening

torque

N-m


C

N


C0

N


　N

CF … FWBUUR

f

CFCFKRCFSNUCFCR

I


Stud dia.

mm


g



6 CF-FU1- 6 CF-RU1- 6 28.5

95 105

250

8151 140

18.5

19

3032

40

6272

16

11

1414

20

2929

11

8

1212

18

2424

6

M 8×1.25

M12×1.5M12×1.5

M18×1.5

M24×1.5M24×1.5

M 6×1


10

1313

19

2525

8

8 CF-FU1- 8CF-RU1- 8

10 CF-FU1-10CF-FU1-10-1

CF-RU1-10CF-RU1-10-1

45 60

2226

1212

1010

M10×1.25M10×1.25

1212

12 CF-FU1-12CF-FU1-12-1

CF-RU1-12CF-RU1-12-1

16 CF-RU1-16 CF-FU1-16 170 35 18 16 M16×1.5 17

18 CF-RU1-18 CF-FU1-18

20 CF-RU1-20CF-RU1-20-1

CF-FU1-20CF-FU1-20-1

460 385

5247

2424

2020

M20×1.5M20×1.5

2121

24 CF-RU1-24CF-RU1-24-1

CF-FU1-24CF-FU1-24-1

30CF-RU1-30CF-RU1-30-1CF-RU1-30-2

CF-FU1-30CF-FU1-30-1CF-FU1-30-2

1 8702 0302 220

808590

353535

303030

M30×1.5M30×1.5M30×1.5

323232

CF-RU1

Note(1)　　 Minimum allowable value of chamfer dimension rRemarks1. Models with a stud diameter d1 of 12 mm or less are provided with a lubrication tapped hole on the stud head only. Other models

are provided with one lubrication tapped hole each on the head and end surface of the stud. 2. Provided with prepacked grease.

G1GD C d1

CAM FOLLOWERS

Centralized Lubrication Type Cam Followers With Cage/Stud Head Hex Hole

Stud dia. 6−30mm

13.213.2

15.215.2

12.2

36.2 36.2

40.2 40.2

28.2

2323

2525

16

0.60.6

0.60.6

0.6

M6×0.75 0.3

0.3

0.60.6

0.3

1616

2121

11

13.8 13.8

23.9 23.9

2.7

5 430 5 430

7 910 7 910

3 660

6 890 6 890

9 790 9 790

3 650

6 8906 890

9 7909 790

1 950

12.2 32.2 20 0.6 0.3 13 6.5 4 250 4 740 4 620

19.6 52.1 32.5 8 0.8 3

PT1/8

PT1/8

0.6 26 58.5 12 000 18 300 18 300

21.6 58.1 36.5 8 0.8 3 1 29 86.2 14 800 25 200 25 200

25.625.6

66.1 66.1

40.540.5

9 9

0.80.8

44

11

3434

119 119

20 70020 700

34 60034 600

34 60034 600

30.630.6

80.1 80.1

49.549.5

1111

0.80.8

44

11

4040

215 215

30 50030 500

52 60052 600

52 00052 000

373737

100100100

636363

151515

111

444

111

494949

438 438 438

45 40045 40045 400

85 10085 10085 100

85 10085 10085 100

(1)

CF-FU1

M2B3B2 C1 g2 M1 rs minBmax

B1max

Mounting dimension

fMin.

mm

Maximum tightening

torque

N-m


C

N


C0

N


　N

CFCFKRCFSNUCFCR

I


CF-SFU … B CF-SFU … B


an oil hole (grease nipple) at the head. 2. Provided with prepacked grease.

CAM FOLLOWERS

Easy Mounting Type Cam Followers With Cage/Stud Head Hex Hole

Stud dia. 6−20mm

Stud dia.

mm


Mass (Ref.)

g

　　　　　　　　　　　　　Boundary dimensions　mm

6 CF-SFU- 6 B

19

40

3032

16

29

235

94104

19.5

11

20

1414

11

8

18

1212

6

12.2

21.6

15.215.2

12.2

32

46.5

3535

32

19.8

24.9

19.819.8

19.8

0.6

0.8

0.60.6

0.6

5

10

55

5

8 CF-SFU- 8 B

16 CF-SFU-16 B 35164 18 16 19.6 44.5 24.9 0.8 10

18 CF-SFU-18 B

20 CF-SFU-20 BCF-SFU-20-1 B

5247

435360

2424

2020

25.625.6

50.550.5

24.924.9

0.80.8

1010


2226

44 59

1212

1010

13.213.2

3333

19.819.8

0.60.6

55


L1B2 C1Bmax

B1max

D C d1

C

H

D

rr

e

C1

B1

B2B

L1

d 1

L2

90°

B

90°

H

C

B2

B1

L2L1

C1

Dr

e

d 1

r

Stud dia. d1　6-10mm Stud dia. d1　12-20mm

＋ 0.015 0

＋ 0.018 0

(1)Tolerance

tMin.

fMin.

h (Ref.)

Mounting dimensions　mm

10

10

1010

10

4

8

66

3

0.5

1

11

0.3

8

18

1212

6 ＋ 0.012

0

20

25

2020

20

13

29

2121

11

10

15

1010

10

4 250

14 800

7 9107 910

3 660

4 740

25 200

9 7909 790

3 650

4 620

25 200

9 7909 790

1 950

10 6 1 16 25 26 15 12 000 18 300 18 300

1010

88

11

2020

＋ 0.021 0

2525

3434

1515

20 70020 700

34 60034 600

34 60034 600

1010

44

0.50.5

0.3

1

0.60.6

0.3

0.6

11

0.30.3

1010

2020

1616

1010

5 4305 430

6 8906 890

6 8906 890

rs min D1L2 H e


C

N


C0

N


　N

th

D1

f

CFCFKRCFSNUCFCR

I


Stud dia.

mm


Mass (Ref.)

g


6 8

16

18

10

12

20

CF 6 G

CF 8 G

CF 10 G

CF 10-1 G

CF 12 G

CF 12-1 G

CF 16 G

CF 18 G

CF 20 G

CF 20-1 G

16

19

22

26

30

32

35

40

52

47

11

11

12

12

14

14

18

20

24

24

6

8

10

10

12

12

16

18

20

20

19.5

29.5

47.5

61.5

95.0

105

175

255

470

400

M 6×1

M 8×1.25

M10×1.25

M10×1.25

M12×1.5

M12×1.5

M16×1.5

M18×1.5

M20×1.5

M20×1.5

8

10

12

12

13

13

17

19

21

21

12.2

12.2

13.2

13.2

15.2

15.2

19.6

21.6

25.6

25.6

28.2

32.2

36.2

36.2

40.2

40.2

52.1

58.1

66.1

66.1

Note(1)　　 Minimum allowable value of chamfer dimension r.Remarks1. This type of bearings cannot be re-lubricated due to the structure. If the environment requires re-lubrication, please use Standard

Type Cam Followers.Remarks2. Provided with prepacked grease.

B1max

G1 Bmax

D GC d1

Stud dia. 6−20mmCF … G

CAM FOLLOWERS

Cam Follower G With Cage/Stud Head Hex Hole

G

B2B

r

H

B1

C1

C

G1

d1

rD

3

4

4

4

6

6

6

8

8

8

11

13

16

16

21

21

26

29

34

34

0.6

0.6

0.6

0.6

0.6

0.6

0.8

0.8

0.8

0.8

16

20

23

23

25

25

32.5

36.5

40.5

40.5

0.3

0.3

0.3

0.3

0.6

0.6

0.6

1

1

1

Mounting dimension

fMin.

mm

1 950

4 620

6 890

6 890

9 790

9 790

18 300

25 200

34 600

34 600

3 650

4 740

6 890

6 890

9 790

9 790

18 300

25 200

34 600

34 600

3 660

4 250

5 430

5 430

7 910

7 910

12 000

14 800

20 700

20 700

2.7

6.5

13.8

13.8

23.9

23.9

61.1

89.2

125

125

B2 C1 H (1)rs min

Maximum tightening

torque

N-m


C

N


C0

N

Maximum allowable static

load

　N

f

CFCFKRCFSNUCFCR

I


C-Lube Cam Followers With Cage / Stud Head Hex Hole

Stud dia. 5−20mm

CAM FOLLOWERS

Remark　 This bearing cannot be re-lubricated as thermosetting solid-type lubricant C-Lube fills its inner space.

Stud dia.

mm

Mass(Ref.)


g

5

6

8

10

12

16

18

20

CF 5 WBUUR/SG

CF 6 WBUUR/SG

CF 8 WBUUR/SG CF 10 WBUUR/SGCF 10-1 WBUUR/SG

CF 12 WBUUR/SGCF 12-1 WBUUR/SGCF 16 WBUUR/SGCF 18 WBUUR/SG

CF 20 WBUUR/SGCF 20-1 WBUUR/SG

10.3

18.5

28.5 45 60

95 105

170

250

460 385

13

16

19

2226

3032

35

40

5247

9

11

11

1212

1414

18

20

2424

M 5×0.8

M 6×1

M 8×1.25

M10×1.25M10×1.25

M12×1.5M12×1.5

M16×1.5

M18×1.5

M20×1.5M20×1.5

5

6

8

1010

1212

16

18

2020

D C d1 G G1 B B1

7.5

8

10

1212

1313

17

19

2121

10

12.2 max

12.2 max

13.2 max

13.2 max

15.2 max

15.2 max

19.6 max

21.6 max

25.6 max

25.6 max

23

28.2 max

32.2 max

36.2 max

36.2 max

40.2 max

40.2 max

52.1 max

58.1 max

66.1 max

66.1 max


CF … WB … /SG

C

H

D G

G1

d 1

C1B2

B1

BR=500

B2 C1 H

Mounting dimension

fMin.

mm

Maximum tightening

torque

N-m


C

N


C0

N

Maximumallowablestatic load

　N

13

16

20

2323

2525

32.5

36.5

40.540.5

0.5

0.6

0.6

0.60.6

0.60.6

0.8

0.8

0.80.8

3

3

4

44

66

6

8

88

9.3

11

13

1616

2121

26

29

3434

1.6

2.7

6.5

13.8 13.8

21.9 21.9

58.5

86.2

119119

2 520

3 660

4 250

5 430 5 430

7 910 7 910

12 000

14 800

20 70020 700

2 140

3 650

4 740

6 890 6 890

9 790 9 790

18 300

25 200

34 60034 600

1 260

1 950

4 620

6 890 6 890

9 790 9 790

18 300

25 200

34 60034 600

CFCFKRCFSNUCFCR

I


Stud dia.

mm


g


With cage

2.5 CFS 2.5 V

CFS 2.5

4 4

2 2

7 7

1 1

8 8

6 6

10 10

5 5

55

44

66

33

44

33

55

2.52.5

M4　×0.7M4　×0.7

M3　×0.5M3　×0.5

M5　×0.8M5　×0.8

M2.5 ×0.45M2.5 ×0.45

Full complement

44

33

55

2.52.5

3 CFS 3 V

CFS 3

4 CFS 4 V

CFS 4

5 CFS 5 V

CFS 5

6 CFS 6 V

CFS 6

13 13

12 12

77

66

M6　×1M6　×1

66

B

77

5.55.5

88

4.54.5

9.59.5

CFS

Full Complement Type/Stud Head Hex Hole

Remarks1. No oil hole is provided. 2. Provided with prepacked grease.

2 CFS 2

CFS 2　V

0.60.6

4.5 4.5

2.52.5

2 2

M2　×0.4M2　×0.4

22

44

G G1D C d1

CAM FOLLOWERS

Miniature Type Cam Followers With Cage/Stud Head Hex Hole

Stud dia. 2−6mm


C

N


C0

N


　N

B1 HC1

11.511.5

1818

9.5 9.5

66

1010

55

0.70.7

1.01.0

0.70.7

1.31.3

22

0.90.9

5.85.8

9.69.6

4.84.8

33.5 33.5

158 158

18.7 18.7

484484

1 5701 570

351360

1515

88

1.01.0

1.51.5

7.77.7

77.7 77.7

919919

21.521.5

1212

1.21.2

2.52.5

11.611.6

268 268

2 1502 150

B2

Mounting dimension

fMin.

mm

Maximum tightening

torque

N-m

CFS … V

8 8

4 4

0.70.7

0.90.9

4.34.3

9.1 9.1

202229

6291 420

1 5703 180

4281 000

6111 790

1 8504 700

3511 080

1 1202 370

1 1203 000

2 0904 610

2 2006 250

288768

202734

CFCFKRCFSNUCFCR

I


Stud dia.

mm


g


With cage

2.5

2

CFS 2.5 FV

CFS 2 FV

CFS 2.5 F

CFS 2 F

2 2

7 7

1 1

0.60.6

66

1010

55

4.54.5

44

66

33

2.52.5

33

55

2.52.5

22

M3　×0.5M3　×0.5

M5　×0.8M5　×0.8

M2.5 ×0.45M2.5 ×0.45

M2　×0.4M2　×0.4

Full complement

33

55

2.52.5

22

3 CFS 3 FV

CFS 3 F

4 CFS 4 FV

CFS 4 F

4 4

88

55

44

M4　×0.7M4　×0.7

44

5 CFS 5 FV

CFS 5 F

6 CFS 6 FV

CFS 6 F

1313

1212

77

66

M6　×1M6　×1

66

5.55.5

88

4.54.5

44

77

9.59.5


BG G1D C d1

CAM FOLLOWERS

Full Complement Type/Stud Head Hex HoleMiniature Type Cam Followers / Stainless Steel Made With Cage/Stud Head Hex Hole

Stud dia. 2−6mmCFS … F

11.511.5

1818

9.5 9.5

8 8

66

1010

55

44

0.70.7

1.01.0

0.70.7

0.70.7

1.31.3

22

0.90.9

0.90.9

5.85.8

9.69.6

4.84.8

4.34.3

33.5 33.5

158 158

18.7 18.7

9.1 9.1

5041 140

1 2502 540

342800

230614

4881 430

1 4803 760

281862

161587

484484

1 4801 570

281360

161229

1515

88

1.01.0

1.51.5

7.77.7

77.7 77.7

8971 900

8942 400

894919

21.521.5

1212

1.21.2

2.52.5

11.611.6

268 268

1 6703 690

1 7605 000

1 7602 150

CFS … FV


C

N


C0

N


　N

B1 HC1B2

Mounting dimension

fMin.

mm

Maximum tightening

torque

N-cm

CFCFKRCFSNUCFCR

I


Stud dia.

mm



Mass(Ref.)

g

　　　　　　 Boundary dimensions　mm

1.4

2

2.5

3

4

5

6

CFS 2 W

CFS 2.5 W

CFS 3 W

CFS 4 W

CFS 5 W

CFS 6 W

CFS 1.4 WV

0.35

0.6

1

2

4

7

13

4

4.5

5

6

8

10

12

1.7

2.5

3

4

5

6

7

1.4

2

2.5

3

4

5

6

M1.4 ×0.3

M2 ×0.4

M2.5 ×0.45

M3 ×0.5

M4 ×0.7

M5 ×0.8

M6 ×1

1.4

2

2.5

3

4

5

6

3.7

4.5

5

6.5

8

9

10.5


BG G1D C d1

Thrust Disk Type Miniature Cam Followers

CAM FOLLOWERS

Stud dia. 1.4−6mm CFS1.4 WV

Full Complement Type/Stud Head Hex Hole

With Cage/Stud Head Hex Hole

7

8.5

10

12.5

16

19

22.5

3.3

4

5

6

8

10

12

0.7

0.7

0.7

0.7

1

1

1.2

0.9

0.9

0.9

1.3

1.5

2

2.5

3.8

4.3

4.8

5.8

7.7

9.6

11.6

3.0

9.1

18.7

33.5

77.7

158

268

481

288

428

629

1120

1570

2090

385

202

351

611

1120

1850

2200

105

194

313

399

785

1370

1920


C0

NB1 HC1B2

Mounting dimension

fMin.

mm

Maximum tightening

torque

N-cm


　N

B1

B2

C1

G1

d1

GD

C

H

B

f


C

N

CFS … W

CFCFKRCFSNUCFCR

I


CFS … FW

B1

B2

C1

G1

d1

GD

C

H

B

Stud dia.

mm


Mass(Ref.)

g

　　　　　　 Boundary dimensions　mm

2 CFS 2 FW 0.6 4.5 2.5 2 M2　×0.4 2 4.5

2.5 CFS 2.5 FW 1 5 3 2.5 M2.5 ×0.45 2.5 5

3 CFS 3 FW 2 6 4 3 M3　×0.5 3 6.5

4 CFS 4 FW 4 8 5 4 M4　×0.7 4 8

5 CFS 5 FW 7 10 6 5 M5　×0.8 5 9

6 CFS 6 FW 13 12 7 6 M6　×1 6 10.5


Stud dia. 2−6mm

BG G1D C d1

Thrust Disk Type Miniature Cam Followers･Stainless Steel Made With Cage/Stud Head Hex Hole

CAM FOLLOWERS

8.5

10

12.5

16

19

22.5

4 0.7 0.9 4.3 9.1 230 161 161

5 0.7 0.9 4.8 18.7 342 281 281

6 0.7 1.3 5.8 33.5 504 488 399

8 1.0 1.5 7.7 77.7 897 894 785

10 1.0 2 9.6 158 1 250 1 480 1 370

12 1.2 2.5 11.6 268 1 670 1 760 1 760

f


C

N


C0

N


　N

B1 HC1B2

Mounting dimension

fMin.

mm

Maximum tightening

torque

N-cm

CFCFKRCFSNUCFCR

I


Remarks1. For models with a stud diameter d1 of 10mm, oil hole (re-greasing fitting) is provided at the head. Other models are provided with an oil hole (grease nipple) at the head and an oil hole each on the outside surface and end surface of the stud.

2. Provided with prepacked grease.

CAM FOLLOWERS

Cylindrical Roller Cam Followers Full Complement Type/Stud Head Hex Hole

Stud dia. 10−30mm

Stud dia.

mm


Mass (Ref.)

g


10 NUCF 10 BRNUCF 10-1 BR

8697

244

7891 020

4458

3032

40

6272

2226

1414

20

2929

1212

1212

18

2424

1010

M12×1.5M12×1.5

M18×1.5

M24×1.5M24×1.5

M10×1.25M10×1.25

1313

19

2525

1212

15.215.2

21.6

30.630.6

13.213.2

40.2 40.2

58.1

80.1 80.1

36.2 36.2

2525

36.5

49.549.5

2323


16 NUCF 16 BR 167 35 18 16 M16×1.5 17 19.6 52.1 32.5

18 NUCF 18 BR


457384

5247

2424

2020

M20×1.5M20×1.5

2121

25.625.6

66.1 66.1

40.540.5



1 6001 970

8090

3535

3030

M30×1.5M30×1.5

3232

3737

100100

6363

G B2G1 Bmax

B1max

D C d1

CB3

G1C1

B2B

H

R=500B1

g2

g 1

d 1

GD

R=500B

H

C

G1C1

B1

B2

D G

d 1

NUCF … BRNUCF … BRStud dia. d1　10mm Stud dia. d1　12-30mm

66

8

1111

0.60.6

0.8

0.80.8

0.60.6

44

6

66

33

3

44

1717

22

3844

1212

21.9 21.9

86.2

215 215

13.8 13.8

14 00014 000

25 200

58 20063 900

10 40010 400

13 40013 400

30 900

75 30088 800

11 50011 500

5 6509 040

20 300

35 20057 000

5 3009 210

8 0.8 4 3 20 58.5 23 400 27 300 11 800

99

0.80.8

66

44

3127

119 119

43 10038 900

58 10049 000

30 00027 200

1515

11

66

44

4545

438 438

90 30090 300

121 000121 000

98 30098 300

Mounting dimension

fMin.

mm

Maximum tightening

torque

N-mg1 g2

66

8

1212

44

6

88

1717

HB3 C1


C

N


C0

N


　N

f

CFCFKRCFSNUCFCR

I


CR … BR

Stud dia.mm

(inch)

Mass (Ref.)

g


4.826





6.350（14）9.525

（38）11.112

（716）12.700（12）15.875（58）19.050（34）22.225（78）


Remarks1. Models with a stud diameter d1 of 6.35 mm or less have no oil hole. Other models are provided with one oil hole each on the outside surface and end surface of the stud.

2. Provided with prepacked grease. 3. For the maximum allowable static load, please contact IKO.

CR 8 BRCR 8-1 BR

CR 8 BCR 8-1 B

CR 8 BUURCR 8-1 BUUR

CR 8 BUUCR 8-1 BUU

CR 10 BRCR 10-1 BR

CR 10 BCR 10-1 B

CR 10 BUURCR 10-1 BUUR

CR 10 BUUCR 10-1 BUU

CR 12 BRCR 14 BR

CR 12 BCR 14 B

CR 12 BUURCR 14 BUUR

CR 12 BUUCR 14 BUU

CR 16 BRCR 18 BR

CR 16 BCR 18 B


CR 16 BUUCR 18 BUU

CR 20 BRCR 22 BR

CR 20 BCR 22 B


CR 20 BUUCR 22 BUU

CR 24 BRCR 26 BR

CR 24 BCR 26 B


CR 24 BUUCR 26 BUU

CR 28 BRCR 30 BR

CR 28 BCR 30 B


CR 28 BUUCR 30 BUU

CR 32 BRCR 36 BR

CR 32 BCR 36 B


CR 32 BUUCR 36 BUU

8.731 9.525

4.826 4.826

No.10-32No.10-32

6.350 6.350

910

10.31911.112

6.350 6.350

14 - 28 14 - 28

7.938 7.938

1921

12.70012.700

9.525 9.525

38 - 24 38 - 24

9.525 9.525

3546

15.87515.875

11.11211.112

716 - 20716 - 20

12.70012.700

7399

19.05019.050

12.70012.700

12 - 20 12 - 20

15.87515.875

132157

22.22522.225

15.87515.875

58 - 18 58 - 18

19.05019.050

225260

25.40025.400

19.05019.050

34 - 16 34 - 16

22.22522.225

365410

31.75031.750

22.22522.225

（ 14）（ 14）

（ 38）（ 38）

（716）（716）

（ 12）（ 12）

（ 58）（ 58）

（ 34）（ 34）

（ 78）（ 78）

78 - 14 78 - 14

25.40025.400

（ 14）（ 14）

（ 516）（ 516）

（ 38）（ 38）

（ 12）（ 12）

（ 58）（ 58）

（ 34）（ 34）

（ 78）（ 78）

（1 ）（1 ）

615750

（ 12）（ 12）

（ 58）（ 58）

（ 34）（ 78）

（1 ）（118）

（114）（138）

（112）（158）

（134）（178）

（2 ）（214）

12.70012.700

15.87515.875

19.05022.225

25.40028.575

31.75034.925

38.10041.275

44.45047.625

50.80057.150

（ 1132）（ 38）

（ 1332）（ 716）

（ 12）（ 12）

（ 58）（ 58）

（ 34）（ 34）

（ 78）（ 78）

（1 ）（1 ）

（1 14）（1 14）

Stud dia. 4.826− 22.225mm

GUNF

G1D C d1

CAM FOLLOWERS

Inch Series Cam Followers With Cage/Stud Head Hex Hole

B

g

g

d

C

H

G

C

BB

R=500

GD

3

1

1

1

1

2

2

CR … B

2 1402 140

3 6703 670

5 1105 810

10 80011 600

16 00016 000

24 30024 300

38 20038 200

63 90063 900


Bmax

B2 B3 C1 g1 g2 H r

12.700（ 12）15.875（ 58）

0.794（132）0.794（132）

10.2（0.40）10.9（0.43）

0.397（164）0.397（164）

8.334（ 2164） 8.334（ 2164）

1.4 1.4

2 5202 520

（）（）

（）（）

（）（）

15.875（ 58）19.050（ 34）

0.794（132）0.794（132）

11.8（0.46）12.5（0.49）

0.397（164）0.397（164）

11.509（ 2964）11.509（ 2964）

3.4 3.4

3 6503 650

（）（）

（）（）

（）（）

22.225（ 78）22.225（ 78）

0.794（132）0.794（132）

14.2（0.56）14.2（0.56）

0.794（132）0.794（132）

13.494（ 1732）15.081（ 1932）

10.8 10.8

4 4204 790

2.381（332）2.381（332）

4.762（316）4.762（316）

6.350（ 14）6.350（ 14）

25.400（1 ）25.400（1 ）

0.794（132）0.794（132）

17.3（0.68）17.3（0.68）

1.191（364）1.588（116）

17.859（ 4564）19.050（ 34）

17.4 17.4

8 8109 180

3.175（ 18）3.175（ 18）

4.762（316）4.762（316）

6.350（ 14）6.350（ 14）

31.750（114）31.750（114）

0.794（132）0.794（132）

20.4（0.80）20.4（0.80）

1.588（116）1.588（116）

1.588（116）1.588（116）

21.828（ 5564）21.828（ 5564）

27.7 27.7

14 20014 200

3.175（ 18）3.175（ 18）

4.762（316）4.762（316）

7.938（516）7.938（516）

38.100（112）38.100（112）

0.794（132）0.794（132）

23.6（0.93）23.6（0.93）

26.196（1 364）26.196（1 364）

55.7 55.7

18 60018 600

3.969（532）3.969（532）

4.762（316）4.762（316）

9.525（ 38）9.525（ 38）

44.450（134）44.450（134）

0.794（132）0.794（132）

26.8（1.06）26.8（1.06）

1.588（116）1.588（116）

32.543（1 932）32.543（1 932）

100 100

25 10025 100

3.969（532）3.969（532）

4.762（316）4.762（316）

11.112（716）11.112（716）

50.800（2 ）50.800（2 ）

0.794（132）0.794（132）

33.5（1.32）33.5（1.32）

1.588（116）1.588（116）

37.306（11532）37.306（11532）

162 162

32 50032 500

4.762（316）4.762（316）

4.762（316）4.762（316）

3.175（ 18）3.175（ 18）

3.175（ 18）3.175（ 18）

4.762（316）4.762（316）

6.350（ 14）6.350（ 14）

6.350（ 14）6.350（ 14）

7.938（516） 7.938（516）

7.938（516） 7.938（516）

11.112（716）11.112（716）

12.700（ 12）12.700（ 12）

CR … BUU


C

N


C0

N

Mounting dimension

fMin.

mm(inch)

Maximum tightening

torque

N-m

CR … BUUR

r

r

R=500

r

r

f

CFCFKRCFSNUCFCR

I


CR … R

Mass (Ref.)

g

4.826 8.731 9.525

4.826 4.826

No.10-32No.10-32

6.350 6.350

910

6.350（14）

10.31911.112

6.350 6.350

14 - 28 14 - 28

7.938 7.938

1921

9.525（38）

12.70012.700

9.525 9.525

38 - 24 38 - 24

9.525 9.525

3546

11.112（716）

15.87515.875

11.11211.112

716 - 20716 - 20

12.70012.700

7399

12.700（12）

19.05019.050

12.70012.700

12 - 20 12 - 20

15.87515.875

132157

15.875（58）

22.22522.225

15.87515.875

58 - 18 58 - 18

19.05019.050

225260

19.050（34）

25.40025.400

19.05019.050

34 - 16 34 - 16

22.22522.225

365410

22.225（78）

31.75031.750

22.22522.225

（ 14）（ 14）

（ 38）（ 38）

（716）（716）

（ 12）（ 12）

（ 58）（ 58）

（ 34）（ 34）

（ 78）（ 78）

78 - 14 78 - 14

25.40025.400

（ 14）（ 14）

（ 516）（ 516）

（ 38）（ 38）

（ 12）（ 12）

（ 58）（ 58）

（ 34）（ 34）

（ 78）（ 78）

（1 ）（1 ）

615750

（ 12）（ 12）

（ 58）（ 58）

（ 34）（ 78）

（1 ）（118）

（114）（138）

（112）（158）

（134）（178）

（2 ）（214）

12.70012.700

15.87515.875

19.05022.225

25.40028.575

31.75034.925

38.10041.275

44.45047.625

50.80057.150

（ 1132）（ 38）

（ 1332）（ 716）

（ 12）（ 12）

（ 58）（ 58）

（ 34）（ 34）

（ 78）（ 78）

（1 ）（1 ）

（1 14）（1 14）

Remarks1. Models with a stud diameter d1 of 6.35 mm or less (marked *) are provided with an oil hole on the stud head only. Other models are provided with one oil hole each on the head, outside surface and end surface of the stud.


Stud dia.mm

(inch)







CR 8 RCR 8-1 R

CR 8CR 8-1

CR 8 UURCR 8-1 UUR

CR 8 UUCR 8-1 UU

CR 10 RCR 10-1 R

CR 10CR 10-1

CR 10 UURCR 10-1 UUR

CR 10 UUCR 10-1 UU

CR 12 RCR 14 R

CR 12CR 14

CR 12 UURCR 14 UUR

CR 12 UUCR 14 UU

CR 16 RCR 18 R

CR 16CR 18

CR 16 UURCR 18 UUR

CR 16 UUCR 18 UU

CR 20 RCR 22 R

CR 20CR 22

CR 20 UURCR 22 UUR

CR 20 UUCR 22 UU

CR 24 RCR 26 R

CR 24CR 26

CR 24 UURCR 26 UUR

CR 24 UUCR 26 UU

CR 28 RCR 30 R

CR 28CR 30

CR 28 UURCR 30 UUR

CR 28 UUCR 30 UU

CR 32 RCR 36 R

CR 32CR 36

CR 32 UURCR 36 UUR

CR 32 UUCR 36 UU

GUNF

G1D C d1

CAM FOLLOWERS

Inch Series Cam Followers With Cage/With Screwdriver Slot

Stud dia. 4.826− 22.225mm

B

g

g

d

g

1

C

G

C

B

R=500

GD

3

1

1

1

1

B2

2

CR … UUCR

2 1402 140

3 6703 670

5 1105 810

10 80011 600

16 00016 000

24 30024 300

38 20038 200

63 90063 900


12.700（ 12）15.875（ 58）

0.794（132）0.794（132）

10.2（0.40）10.9（0.43）

0.397（164）0.397（164）

8.334（ 2164） 8.334（ 2164）

1.4 1.4

2 5202 520

（）（）

*3.175（ 18）*3.175（ 18）

（）（）

15.875（ 58）19.050（ 34）

0.794（132）0.794（132）

11.8（0.46）12.5（0.49）

0.397（164）0.397（164）

11.509（ 2964）11.509（ 2964）

3.4 3.4

3 6503 650

（）（）

*3.175（ 18）*3.175（ 18）

（）（）

22.225（ 78）22.225（ 78）

0.794（132）0.794（132）

14.2（0.56）14.2（0.56）

0.794（132）0.794（132）

13.494（ 1732）15.081（ 1932）

10.8 10.8

4 4204 790

2.381（332）2.381（332）

4.762（316）4.762（316）

6.350（ 14）6.350（ 14）

25.400（1 ）25.400（1 ）

0.794（132）0.794（132）

17.3（0.68）17.3（0.68）

1.191（364）1.588（116）

17.859（ 4564）19.050（ 34）

17.4 17.4

8 8109 180

3.175（ 18）3.175（ 18）

4.762（316）4.762（316）

6.350（ 14）6.350（ 14）

31.750（114）31.750（114）

0.794（132）0.794（132）

20.4（0.80）20.4（0.80）

1.588（116）1.588（116）

21.828（ 5564）21.828（ 5564）

27.7 27.7

14 20014 200

3.175（ 18）3.175（ 18）

4.762（316）4.762（316）

7.938（516）7.938（516）

38.100（112）38.100（112）

0.794（132）0.794（132）

23.6（0.93）23.6（0.93）

1.588（116）1.588（116）

26.196（1 364）26.196（1 364）

55.7 55.7

18 60018 600

3.969（532）3.969（532）

4.762（316）4.762（316）

9.525（ 38）9.525（ 38）

44.450（134）44.450（134）

0.794（132）0.794（132）

26.8（1.06）26.8（1.06）

1.588（116）1.588（116）

32.543（1 932）32.543（1 932）

100 100

25 10025 100

3.969（532）3.969（532）

4.762（316）4.762（316）

11.112（716）11.112（716）

50.800（2 ）50.800（2 ）

0.794（132）0.794（132）

33.5（1.32）33.5（1.32）

1.588（116）1.588（116）

37.306（11532）37.306（11532）

162 162

32 50032 500

4.762（316）4.762（316）

4.762（316）4.762（316）

12.700（ 12）12.700（ 12）

CR … UUR

Bmax

B2 B3 C1 g1 g2 r


C

N


C0

N

Mounting dimension

fMin.

mm(inch)

Maximum tightening

torque

N-m

r

r

R=500

r

r f

CFCFKRCFSNUCFCR

I


Mass (Ref.)

g

4.826 8.731 9.525

4.826 4.826

No.10-32No.10-32

6.350 6.350

910

6.350（14）

10.31911.112

6.350 6.350

14 - 28 14 - 28

7.938 7.938

1921

9.525（38）

12.70012.700

9.525 9.525

38 - 24 38 - 24

9.525 9.525

3647

11.112（716）

15.87515.875

11.11211.112

716 - 20716 - 20

12.70012.700

74101

12.700（12）

19.05019.050

12.70012.700

12 - 20 12 - 20

15.87515.875

137160

15.875（58）

22.22522.225

15.87515.875

58 - 18 58 - 18

19.05019.050

230265

19.050（34）

25.40025.400

19.05019.050

34 - 16 34 - 16

22.22522.225

372418

22.225（78）

31.75031.750

22.22522.225

（ 14）（ 14）

（ 38）（ 38）

（716）（716）

（ 12）（ 12）

（ 58）（ 58）

（ 34）（ 34）

（ 78）（ 78）

78 - 14 78 - 14

25.40025.400

（ 14）（ 14）

（ 516）（ 516）

（ 38）（ 38）

（ 12）（ 12）

（ 58）（ 58）

（ 34）（ 34）

（ 78）（ 78）

（1 ）（1 ）

627759

（ 12）（ 12）

（ 58）（ 58）

（ 34）（ 78）

（1 ）（118）

（114）（138）

（112）（158）

（134）（178）

（2 ）（214）

12.70012.700

15.87515.875

19.05022.225

25.40028.575

31.75034.925

38.10041.275

44.45047.625

50.80057.150

（ 1132）（ 38）

（ 1332）（ 716）

（ 12）（ 12）

（ 58）（ 58）

（ 34）（ 34）

（ 78）（ 78）

（1 ）（1 ）

（1 14）（1 14）

Stud dia.mm

(inch)







CR 8 VBRCR 8-1 VBR

CR 8 VBCR 8-1VB

CR 8 VBUURCR 8-1 VBUUR

CR 8 VBUUCR 8-1 VBUU

CR 10 VBRCR 10-1 VBR

CR 10 VBCR 10-1VB

CR 10 VBUURCR 10-1 VBUUR

CR 10 VBUUCR 10-1 VBUU

CR 12 VBRCR 14 VBR

CR 12 VBCR 14 VB

CR 12 VBUURCR 14 VBUUR

CR 12 VBUUCR 14 VBUU

CR 16 VBRCR 18 VBR

CR 16 VBCR 18 VB



CR 20 VBRCR 22 VBR

CR 20 VBCR 22 VB



CR 24 VBRCR 26 VBR

CR 24 VBCR 26 VB



CR 28 VBRCR 30 VBR

CR 28 VBCR 30 VB



CR 32 VBRCR 36 VBR

CR 32 VBCR 36 VB





GUNF

G1D C d1

CR … VBR

CAM FOLLOWERS

Inch Series Cam Followers Full Complement Type/Stud Head Hex Hole

Stud dia. 4.826−22.225mm

H

R=500

D

B

G

d

C

B3

g 1

1

C1

G1

B 2

g2

4 7505 410

7 6608 530

12 30012 300

22 70022 700

31 70031 700

40 10040 100

55 60055 600

80 60080 600


12.700（ 12）15.875（ 58）

0.794（132）0.794（132）

10.2（0.40）10.9（0.43）

0.397（164）0.397（164）

8.334（ 2164） 8.334（ 2164）

1.4 1.4

4 2604 710

（）（）

（）（）

（）（）

15.875（ 58）19.050（ 34）

0.794（132）0.794（132）

11.8（0.46）12.5（0.49）

0.397（164）0.397（164）

11.509（ 2964）11.509（ 2964）

3.4 3.4

5 8306 340

（）（）

（）（）

（）（）

22.225（ 78）22.225（ 78）

0.794（132）0.794（132）

14.2（0.56）14.2（0.56）

0.794（132）0.794（132）

13.494（ 1732）15.081（ 1932）

10.8 10.8

8 7108 710

2.381（332）2.381（332）

4.762（316）4.762（316）

6.350（ 14）6.350（ 14）

25.400（1 ）25.400（1 ）

0.794（132）0.794（132）

17.3（0.68）17.3（0.68）

1.191（364）1.588（116）

17.859（ 4564）19.050（ 34）

17.4 17.4

13 10013 100

3.175（ 18）3.175（ 18）

4.762（316）4.762（316）

6.350（ 14）6.350（ 14）

31.750（114）31.750（114）

0.794（132）0.794（132）

20.4（0.80）20.4（0.80）

1.588（116）1.588（116）

21.828（ 5564）21.828（ 5564）

27.7 27.7

23 60023 600

3.175（ 18）3.175（ 18）

4.762（316）4.762（316）

7.938（516）7.938（516）

38.100（112）38.100（112）

0.794（132）0.794（132）

23.6（0.93）23.6（0.93）

1.588（116）1.588（116）

26.196（1 364）26.196（1 364）

55.7 55.7

28 20028 200

3.969（532）3.969（532）

4.762（316）4.762（316）

9.525（ 38）9.525（ 38）

44.450（134）44.450（134）

0.794（132）0.794（132）

26.8（1.06）26.8（1.06）

1.588（116）1.588（116）

32.543（1 932）32.543（1 932）

100 100

35 30035 300

3.969（532）3.969（532）

4.762（316）4.762（316）

11.112（716）11.112（716）

50.800（2 ）50.800（2 ）

0.794（132）0.794（132）

33.5（1.32）33.5（1.32）

1.588（116）1.588（116）

37.306（11532）37.306（11532）

162 162

45 70045 700

4.762（316）4.762（316）

4.762（316）4.762（316）

3.175（ 18）3.175（ 18）

3.175（ 18）3.175（ 18）

4.762（316）4.762（316）

6.350（ 14）6.350（ 14）

6.350（ 14）6.350（ 14）

7.938（516） 7.938（516）

7.938（516） 7.938（516）

11.112（716）11.112（716）

12.700（ 12）12.700（ 12）

Bmax

B2 B3 C1 g1 g2 H r


C

N


C0

N

Mounting dimension

fMin.

mm(inch)

Maximum tightening

torque

N-m

CR … VB CR … VBUUCR … VBUUR

r

r

R=500

r

r f

CFCFKRCFSNUCFCR

I


Full Complement Type/Stud Head Hex HoleInch Series Cam Followers



f

G1

D

C

B3

g2 g 1

G

B2

C1

d 1

R=500

H

B

r

r

CR…VBSR CR…VBS

f

G1

D

C

B3

g2 g 1

G

B2

C1

d 1

R=500

H

B

r

r

Stud dia. 4.826−9.525mm

Studdia.mm

(inch)


g

Boundary dimensions　mm(inch) Mountingdimension

fMin.

mm(inch)

Maximumtightening

torque


Basic staticload rating

Sealed type with ThrustDisk SealsTM

D C d1 GUNF

G1 Bmax

B2 B3 C1 g1 g2 H rC C0

With crowned outer ring With cylindrical outer ring N-m N N

4.826CR 8 VBSR CR 8 VBS 9 12.700 ( 1 2） 8.731 ( 11

32） 4.826 No.10-32 6.350 ( 1 4） 10.2 (0.40）12.700 ( 1 2） ( ） 0.794 (1 32） ( ） ( ） 3.175 (1 8） 0.397 (1 64） 8.334 ( 2164） 1.4 3 790 4 100

CR 8-1 VBSR CR 8-1 VBS 10 12.700 ( 1 2） 9.525 ( 3 8） 4.826 No.10-32 6.350 ( 1 4） 10.9 (0.43）15.875 ( 5 8） ( ） 0.794 (1 32） ( ） ( ） 3.175 (1 8） 0.397 (1 64） 8.334 ( 2164） 1.4 4 260 4 750

6.350 (14）

CR 10 VBSR CR 10 VBS 19 15.875 ( 5 8） 10.319 ( 1332） 6.350 (1 4） 1 4-28 7.938 ( 5 16） 11.8 (0.46）15.875 ( 5 8） ( ） 0.794 (1 32） ( ） ( ） 3.175 (1 8） 0.397 (1 64） 11.509 ( 29

64） 3.4 5 310 6 780

CR 10-1 VBSR CR 10-1 VBS 21 15.875 ( 5 8） 11.112 ( 7 16） 6.350 (1 4） 1 4-28 7.938 ( 5 16） 12.5 (0.49） 19.050 ( 3 4） ( ） 0.794 (1 32） ( ） ( ） 3.175 (1 8） 0.397 (1 64） 11.509 ( 2964） 3.4 5 830 7 660

9.525 (38）

CR 12 VBSR CR 12 VBS 34 19.050 ( 3 4） 12.700 ( 1 2） 9.525 (3 8） 3 8-24 9.525 ( 3 8） 14.2 (0.56）22.225 ( 7 8） 6.350 (1 4） 0.794 (1 32） 4.762 (3 16） 2.381 (3 32） 4.762 (3 16） 0.794 (1 32） 13.494 ( 1732） 10.8 7 400 11 100

CR 14 VBSR CR 14 VBS 45 22.225 ( 7 8） 12.700 ( 1 2） 9.525 (3 8） 3 8-24 9.525 ( 3 8） 14.2 (0.56）22.225 ( 7 8） 6.350 (1 4） 0.794 (1 32） 4.762 (3 16） 2.381 (3 32） 4.762 (3 16） 0.794 (1 32） 15.081 ( 1932） 10.8 7 400 11 100

CAM FOLLOWERS

CFCFKRCFSNUCFCR

I


Mass (Ref.)

g

4.826 8.731 9.525

4.826 4.826

No.10-32No.10-32

6.350 6.350

910

6.350（14）

10.31911.112

6.350 6.350

14 - 28 14 - 28

7.938 7.938

1921

9.525（38）

12.70012.700

9.525 9.525

38 - 24 38 - 24

9.525 9.525

3647

11.112（716）

15.87515.875

11.11211.112

716 - 20716 - 20

12.70012.700

74101

12.700（12）

19.05019.050

12.70012.700

12 - 20 12 - 20

15.87515.875

137160

15.875（58）

22.22522.225

15.87515.875

58 - 18 58 - 18

19.05019.050

230265

19.050（34）

25.40025.400

19.05019.050

34 - 16 34 - 16

22.22522.225

372418

22.225（78）31.750

（114）

31.75031.750

44.450

22.22522.225

31.750

（ 14）（ 14）

（ 38）（ 38）

（ 716）（ 716）

（ 12）（ 12）

（ 58）（ 58）

（ 34）（ 34）

（ 78）（ 78）

（1 14）

78 - 14 78 - 14

1 14 - 12

25.40025.400

31.750

（ 14）（ 14）

（ 516）（ 516）

（ 38）（ 38）

（ 12）（ 12）

（ 58）（ 58）

（ 34）（ 34）

（ 78）（ 78）

（1 ）（1 ）

（1 14）

627759

1 960

（ 12）（ 12）

（ 58）（ 58）

（ 34）（ 78）

（1 ）（118）

（114）（138）

（112）（158）

（134）（178）

（2 ）（214）

（3 ）

12.70012.700

15.87515.875

19.05022.225

25.40028.575

31.75034.925

38.10041.275

44.45047.625

50.80057.150

76.200

（ 1132）（ 38）

（ 1332）（ 716）

（ 12）（ 12）

（ 58）（ 58）

（ 34）（ 34）

（ 78）（ 78）

（1 ）（1 ）

（1 14）（1 14）

（1 34）

Stud dia.mm

(inch)







CR 8 VRCR 8-1 VR

CR 8 VCR 8-1 V

CR 8 VUURCR 8-1 VUUR

CR 8 VUUCR 8-1 VUU

CR 10 VRCR 10-1 VR

CR 10 VCR 10-1 V

CR 10 VUURCR 10-1 VUUR

CR 10 VUUCR 10-1 VUU

CR 12 VRCR 14 VR

CR 12 VCR 14 V

CR 12 VUURCR 14 VUUR

CR 12 VUUCR 14 VUU

CR 16 VRCR 18 VR

CR 16 VCR 18 V


CR 16 VUUCR 18 VUU

CR 20 VRCR 22 VR

CR 20 VCR 22 V


CR 20 VUUCR 22 VUU

CR 24 VRCR 26 VR

CR 24 VCR 26 V


CR 24 VUUCR 26 VUU

CR 28 VRCR 30 VR

CR 28 VCR 30 V


CR 28 VUUCR 30 VUU

CR 32 VRCR 36 VR

CR 32 VCR 36 V


CR 32 VUUCR 36 VUU

CR 48 VUU

Remarks1. Models with a stud diameter d1 of 6.35 mm or less (marked *) are provided with an oil hole on the stud head only. Other models are provided with one oil hole each on the head, outside surface and end surface of the stud.


GUNF

G1D C d1

CR … VR

CAM FOLLOWERS

Inch Series Cam Followers Full Complement Type/With Screwdriver Slot

Stud dia. 4.826−31.750mm

C

R=500

D

d 1

B

G

B3

g 1

g 1

G1

C1

B 2

g2

4 7505 410

7 6608 530

12 30012 300

22 70022 700

31 70031 700

40 10040 100

55 60055 600

80 60080 600

172 000


12.700（ 12）15.875（ 58）

0.794（132）0.794（132）

10.2（0.40）10.9（0.43）

0.397（164）0.397（164）

8.334（ 2164） 8.334（ 2164）

1.4 1.4

4 2604 710

（）（）

*3.175（ 18）*3.175（ 18）

（）（）

15.875（ 58）19.050（ 34）

0.794（132）0.794（132）

11.8（0.46）12.5（0.49）

0.397（164）0.397（164）

11.509（ 2964）11.509（ 2964）

3.4 3.4

5 8306 340

（）（）

*3.175（ 18）*3.175（ 18）

（）（）

22.225（ 78）22.225（ 78）

0.794（132）0.794（132）

14.2（0.56）14.2（0.56）

0.794（132）0.794（132）

13.494（ 1732）15.081（ 1932）

10.8 10.8

8 7108 710

2.381（332）2.381（332）

4.762（316）4.762（316）

6.350（ 14）6.350（ 14）

25.400（1 ）25.400（1 ）

0.794（132）0.794（132）

17.3（0.68）17.3（0.68）

1.191（364）1.588（116）

17.859（ 4564）19.050（ 34）

17.4 17.4

13 10013 100

3.175（ 18）3.175（ 18）

4.762（316）4.762（316）

6.350（ 14）6.350（ 14）

31.750（114）31.750（114）

0.794（132）0.794（132）

20.4（0.80）20.4（0.80）

1.588（116）1.588（116）

21.828（ 5564）21.828（ 5564）

27.7 27.7

23 60023 600

3.175（ 18）3.175（ 18）

4.762（316）4.762（316）

7.938（516）7.938（516）

38.100（112）38.100（112）

0.794（132）0.794（132）

23.6（0.93）23.6（0.93）

1.588（116）1.588（116）

26.196（1 364）26.196（1 364）

55.7 55.7

28 20028 200

3.969（532）3.969（532）

4.762（316）4.762（316）

9.525（ 38）9.525（ 38）

44.450（134）44.450（134）

0.794（132）0.794（132）

26.8（1.06）26.8（1.06）

1.588（116）1.588（116）

32.543（1 932）32.543（1 932）

100 100

35 30035 300

3.969（532）3.969（532）

4.762（316）4.762（316）

11.112（716）11.112（716）

50.800（2 ）50.800（2 ）

63.500（212）

0.794（132）0.794（132）

1.588（116）

33.5（1.32）33.5（1.32）

46.4（1.83）

1.588（116）1.588（116）

2.381（332）

37.306（11532）37.306（11532）

51.991（2 364）

162 162

500

45 70045 700

77 600

4.762（316）4.762（316）

4.762（316）

4.762（316）4.762（316）

6.350（ 14）

12.700（ 12）12.700（ 12）

15.875（ 58）

Bmax

B2 B3 C1 g1 g2 r


C

N


C0

N

Mounting dimension

fMin.

mm(inch)

Maximum tightening

torque

N-m

CR … V CR … VUUR CR … VUU

r

r

R=500

r

r f

CFCFKRCFSNUCFCR

I


CRH … VBR



CAM FOLLOWERS

Inch Series Heavy Duty Cam Followers Full Complement Type/Stud Head Hex Hole

Stud dia. 6.350−50.800mm

Mass (Ref.)

g

6.350（14）7.938

（516）11.112

（716）15.875（58）19.050（34）22.225（78）25.400（ 1 ）28.575

（118）

Stud dia.mm

(inch)



CRH 8-1 VBUURCRH 9 VBUUR

CRH 8-1 VBRCRH 9 VBR

CRH 10-1 VBUURCRH 11 VBUUR

CRH 10-1 VBRCRH 11 VBR

CRH 12 VBUURCRH 14 VBUUR

CRH 12 VBRCRH 14 VBR











9.525 9.525

6.350 6.350

14 - 28 14 - 28

6.350 6.350

1215

11.11211.112

7.938 7.938

516 - 24 516 - 24

7.938 7.938

2327

12.70012.700

11.11211.112

716 - 20 716 - 20

9.525 9.525

3949

15.87515.875

15.87515.875

58 - 18 58 - 18

12.70012.700

93109

19.05019.050

19.05019.050

34 - 16 34 - 16

15.87515.875

176200

22.22522.225

22.22522.225

78 - 14 78 - 14

19.05019.050

296329

25.40025.400

25.40025.400

1- 141- 14

22.22522.225

463508

31.75031.750

28.57528.575

（ 14）（ 14）

（ 516）（ 516）

（ 716）（ 716）

（ 58）（ 58）

（ 34）（ 34）

（ 78）（ 78）

（1 ）（1 ）

（118）（118）

1 18 - 121 18 - 12

25.40025.400

（ 14）（ 14）

（ 516）（ 516）

（ 38）（ 38）

（ 12）（ 12）

（ 58）（ 58）

（ 34）（ 34）

（ 78）（ 78）

（1 ）（1 ）

722858

（ 12）（ 916）

（ 58）（ 1116）

（ 34）（ 78）

（1 ）（1 18）

（1 14）（1 38）

（1 12）（1 58）

（1 34）（1 78）

（2 ）（2 14）

12.70014.288

15.87517.462

19.05022.225

25.40028.575

31.75034.925

38.10041.275

44.45047.625

50.80057.150

（ 38）（ 38）

（ 716）（ 716）

（ 12）（ 12）

（ 58）（ 58）

（ 34）（ 34）

（ 78）（ 78）

（1 ）（1 ）

（114）（114）

31.750（114）38.100

（112）44.450

（134）50.800（ 2 ）



CRH 56 VBUUR

CRH 64 VBUUR



CRH 56 VBR

CRH 64 VBR

38.10038.100

44.45044.450

50.800

57.150

31.75031.750

38.10038.100

44.450

50.800

（114）（114）

（112）（112）

（134）

（2 ）

1 14 - 121 14 - 12

1 12 - 121 12 - 12

1 34 - 12UN

2- 12 UN

（118）（118）

（114）（114）

（138）

（112）

1 2601 460

2 1002 380

3 240

4 960

（2 12）（2 34）

（3 ）（3 14）

（3 12）

（4 ）

63.50069.850

76.20082.550

88.900

101.600

（112）（112）

（134）（134）

（2 ）

（214）

28.57528.575

31.75031.750

34.925

38.100

11.1（0.44）11.1（0.44）

12.8（0.50）12.8（0.50）

14.6（0.57）14.6（0.57）

17.9（0.70）17.9（0.70）

21.0（0.83）21.0（0.83）

24.3（0.96）24.3（0.96)

27.4（1.08）27.4（1.08）

34.2（1.35）34.2（1.35）

40.0（1.57）40.0（1.57）

46.4（1.83）46.4（1.83）

52.8（2.08）

59.4（2.34）

Bmax

GUNF

G1D C d1

UNSUNS



B B2

C1

D

H

G1

d1

g2

B3

C

R

G

g 1

5 4105 410

8 5308 530

12 30012 300

22 70022 700

31 70031 700

40 10040 100

55 60055 600

80 60080 600


15.875（ 58） 15.875（ 58）

0.794（ 132） 0.794（ 132）

180（ 7）180（ 7）

8.334（ 2164） 8.334（ 2164）

3.4 3.4

4 7104 710

（）（）

（）（）

（）（）

19.050（ 34） 19.050（ 34）

0.794（ 132） 0.794（ 132）

200（ 8）200（ 8）

11.112（ 716） 11.112（ 716）

6.8 6.8

6 3406 340

（）（）

（）（）

（）（）

22.225（ 78） 22.225（ 78）

0.794（ 132） 0.794（ 132）

250（10）250（10）

13.494（ 1732） 13.494（ 1732）

17.6 17.6

8 7108 710

2.381（ 332） 2.381（ 332）

4.762（ 316） 4.762（ 316）

6.350（ 14） 6.350（ 14）

25.400（1 ） 25.400（1 ）

1.588（ 116） 1.588（ 116）

300（12）300（12）

18.256（ 2332） 18.256（ 2332）

57.8 57.8

13 10013 100

2.381（ 332） 2.381（ 332）

4.762（ 316） 4.762（ 316）

6.350（ 14） 6.350（ 14）

31.750（114） 31.750（114）

1.588（ 116） 1.588（ 116）

360（14）360（14）

24.209（ 6164） 24.209（ 6164）

103 103

23 60023 600

2.381（ 332） 2.381（ 332）

4.762（ 316） 4.762（ 316）

7.938（ 516） 7.938（ 516）

38.100（112） 38.100（112）

1.588（ 116） 1.588（ 116）

500（20）500（20）

26.988（1 116） 26.988（1 116）

162 162

28 20028 200

2.381（ 332） 2.381（ 332）

4.762（ 316） 4.762（ 316）

9.525（ 38） 9.525（ 38）

44.450（134） 44.450（134）

1.588（ 116） 1.588（ 116）

500（20）500（20）

32.941（11964） 32.941（11964）

258 258

35 30035 300

2.381（ 332） 2.381（ 332）

4.762（ 316） 4.762（ 316）

11.112（ 716） 11.112（ 716）

50.800（2 ） 50.800（2 ）

1.588（ 116） 1.588（ 116）

600（24）600（24）

37.306（11532） 37.306（11532）

356 356

45 70045 700

3.175（ 18） 3.175（ 18）

4.762（ 316） 4.762（ 316）

3.175（ 18） 3.175（ 18）

3.175（ 18） 3.175（ 18）

4.762（ 316） 4.762（ 316）

6.350（ 14） 6.350（ 14）

6.350（ 14） 6.350（ 14）

7.938（ 516） 7.938（ 516）

7.938（ 516） 7.938（ 516）

11.112（ 716） 11.112（ 716）

12.700（ 12） 12.700（ 12）

116 000116 000

172 000172 000

239 000

317 000

57.150（214） 57.150（214）

63.500（212） 63.500（212）

69.850（234）

88.900（312）

1.588（ 116） 1.588（ 116）

1.588（ 116） 1.588（ 116）

1.588（ 116）

1.588（ 116）

760（30）760（30）

760（30）760（30）

760（30）

760（30）

40.878（13964） 40.878（13964）

51.991（2 364） 51.991（2 364）

59.928（22364）

64.691（23564）

500 500

892 892

1450

2190

61 40061 400

77 60077 600

111 000

142 000

3.175（ 18） 3.175（ 18）

3.175（ 18） 3.175（ 18）

3.175（ 18）

3.175（ 18）

4.762（ 316） 4.762（ 316）

6.350（ 14） 6.350（ 14）

6.350（ 14）

6.350（ 14）

12.700（ 12） 12.700（ 12）

19.050（ 34） 19.050（ 34）

19.050（ 34）

19.050（ 34）

14.288（ 916） 14.288（ 916）

15.875（ 58） 15.875（ 58）

17.462（1116）

19.050（ 34）

B2 B3 C1 g1 g2 H R


C

N


C0

N

Mounting dimension

fMin.

mm(inch)

Maximum tightening

torque

N-m

CRH … VBUUR

R

f

R

f

CFCFKRCFSNUCFCR

I


Mass (Ref.)

g

6.350（14）7.938

（516）11.112

（716）15.875（58）19.050（34）22.225（78）25.400（ 1 ）28.575

（118）

Stud dia.mm

(inch)



CRH 8-1 VBUUCRH 9 VBUU

CRH 8-1 VBCRH 9 VB

CRH 10-1 VBUUCRH 11 VBUU

CRH 10-1 VBCRH 11 VB

CRH 12 VBUUCRH 14 VBUU

CRH 12 VBCRH 14 VB


CRH 16 VBCRH 18 VB


CRH 20 VBCRH 22 VB


CRH 24 VBCRH 26 VB


CRH 28 VBCRH 30 VB


CRH 32 VBCRH 36 VB



9.525 9.525

6.350 6.350

14 - 28 14 - 28

6.350 6.350

1215

11.11211.112

7.938 7.938

516 - 24 516 - 24

7.938 7.938

2327

12.70012.700

11.11211.112

716 - 20 716 - 20

9.525 9.525

3949

15.87515.875

15.87515.875

58 - 18 58 - 18

12.70012.700

93109

19.05019.050

19.05019.050

34 - 16 34 - 16

15.87515.875

176200

22.22522.225

22.22522.225

78 - 14 78 - 14

19.05019.050

296329

25.40025.400

25.40025.400

1- 141- 14

22.22522.225

463508

31.75031.750

28.57528.575

（ 14）（ 14）

（ 516）（ 516）

（ 716）（ 716）

（ 58）（ 58）

（ 34）（ 34）

（ 78）（ 78）

（1 ）（1 ）

（118）（118）

1 18 - 121 18 - 12

25.40025.400

（ 14）（ 14）

（ 516）（ 516）

（ 38）（ 38）

（ 12）（ 12）

（ 58）（ 58）

（ 34）（ 34）

（ 78）（ 78）

（1 ）（1 ）

722858

（ 12）（ 916）

（ 58）（ 1116）

（ 34）（ 78）

（1 ）（1 18）

（1 14）（1 38）

（1 12）（1 58）

（1 34）（1 78）

（2 ）（2 14）

12.70014.288

15.87517.462

19.05022.225

25.40028.575

31.75034.925

38.10041.275

44.45047.625

50.80057.150

（ 38）（ 38）

（ 716）（ 716）

（ 12）（ 12）

（ 58）（ 58）

（ 34）（ 34）

（ 78）（ 78）

（1 ）（1 ）

（114）（114）

31.750（114）38.100

（112）44.450

（134）50.800（ 2 ）



CRH 56 VBUU

CRH 64 VBUU

CRH 40 VBCRH 44 VB

CRH 48 VBCRH 52 VB

CRH 56 VB

CRH 64 VB

38.10038.100

44.45044.450

50.800

57.150

31.75031.750

38.10038.100

44.450

50.800

（114）（114）

（112）（112）

（134）

（2 ）

1 14 - 121 14 - 12

1 12 - 121 12 - 12

1 34 - 12UN

2- 12

（118）（118）

（114）（114）

（138）

（112）

1 2601 460

2 1002 380

3 240

4 960

（2 12）（2 34）

（3 ）（3 14）

（3 12）

（4 ）

63.50069.850

76.20082.550

88.900

101.600

（112）（112）

（134）（134）

（2 ）

（214）

28.57528.575

31.75031.750

34.925

38.100

11.1（0.44）11.1（0.44）

12.8（0.50）12.8（0.50）

14.6（0.57）14.6（0.57）

17.9（0.70）17.9（0.70）

21.0（0.83）21.0（0.83）

24.3（0.96）24.3（0.96）

27.4（1.08）27.4（1.08）

34.2（1.35）34.2（1.35）

40.0（1.57）40.0（1.57）

46.4（1.83）46.4（1.83）

52.8（2.08）

59.4（2.34）

Bmax

GUNF

G1D C d1

UNSUNS

UN

CRH … VB

CAM FOLLOWERS

Inch Series Heavy Duty Cam Followers Full Complement Type/Stud Head Hex Hole

Stud dia. 6.350−50.800mm



r

H

D

B

G

C

r B3

g 1

d1

C1

G1

B2

g2

5 4105 410

8 5308 530

12 30012 300

22 70022 700

31 70031 700

40 10040 100

55 60055 600

80 60080 600


15.875（ 58） 15.875（ 58）

0.794（ 132） 0.794（ 132）

0.397（ 164）0.397（ 164）

8.334（ 2164） 8.334（ 2164）

3.4 3.4

4 7104 710

（）（）

（）（）

（）（）

19.050（ 34） 19.050（ 34）

0.794（ 132） 0.794（ 132）

0.397（ 164）0.397（ 164）

11.112（ 716） 11.112（ 716）

6.8 6.8

6 3406 340

（）（）

（）（）

（）（）

22.225（ 78） 22.225（ 78）

0.794（ 132） 0.794（ 132）

0.794（ 132）0.794（ 132）

13.494（ 1732） 13.494（ 1732）

17.6 17.6

8 7108 710

2.381（ 332） 2.381（ 332）

4.762（ 316） 4.762（ 316）

6.350（ 14） 6.350（ 14）

25.400（1 ） 25.400（1 ）

1.588（ 116） 1.588（ 116）

1.191（ 364）1.588（ 116）

18.256（ 2332） 18.256（ 2332）

57.8 57.8

13 10013 100

2.381（ 332） 2.381（ 332）

4.762（ 316） 4.762（ 316）

6.350（ 14） 6.350（ 14）

31.750（114） 31.750（114）

1.588（ 116） 1.588（ 116）

1.588（ 116）1.588（ 116）

24.209（ 6164） 24.209（ 6164）

103 103

23 60023 600

2.381（ 332） 2.381（ 332）

4.762（ 316） 4.762（ 316）

7.938（ 516） 7.938（ 516）

38.100（112） 38.100（112）

1.588（ 116） 1.588（ 116）

1.588（ 116）1.588（ 116）

26.988（1 116） 26.988（1 116）

162 162

28 20028 200

2.381（ 332） 2.381（ 332）

4.762（ 316） 4.762（ 316）

9.525（ 38） 9.525（ 38）

44.450（134） 44.450（134）

1.588（ 116） 1.588（ 116）

1.588（ 116）1.588（ 116）

32.941（11964） 32.941（11964）

258 258

35 30035 300

2.381（ 332） 2.381（ 332）

4.762（ 316） 4.762（ 316）

11.112（ 716） 11.112（ 716）

50.800（2 ） 50.800（2 ）

1.588（ 116） 1.588（ 116）

1.588（ 116）1.588（ 116）

37.306（11532） 37.306（11532）

356 356

45 70045 700

3.175（ 18） 3.175（ 18）

4.762（ 316） 4.762（ 316）

3.175（ 18） 3.175（ 18）

3.175（ 18） 3.175（ 18）

4.762（ 316） 4.762（ 316）

6.350（ 14） 6.350（ 14）

6.350（ 14） 6.350（ 14）

7.938（ 516） 7.938（ 516）

7.938（ 516） 7.938（ 516）

11.112（ 716） 11.112（ 716）

12.700（ 12） 12.700（ 12）

116 000116 000

172 000172 000

239 000

317 000

57.150（214） 57.150（214）

63.500（212） 63.500（212）

69.850（234）

88.900（312）

1.588（ 116） 1.588（ 116）

1.588（ 116） 1.588（ 116）

1.588（ 116）

1.588（ 116）

2.381（ 332）2.381（ 332）

2.381（ 332）2.381（ 332）

2.381（ 332）

2.381（ 332）

40.878（13964） 40.878（13964）

51.991（2 364） 51.991（2 364）

59.928（22364）

64.691（23564）

500 500

892 892

1 450

2 190

61 40061 400

77 60077 600

111 000

142 000

3.175（ 18） 3.175（ 18）

3.175（ 18） 3.175（ 18）

3.175（ 18）

3.175（ 18）

4.762（ 316） 4.762（ 316）

6.350（ 14） 6.350（ 14）

6.350（ 14）

6.350（ 14）

12.700（ 12） 12.700（ 12）

19.050（ 34） 19.050（ 34）

19.050（ 34）

19.050（ 34）

14.288（ 916） 14.288（ 916）

15.875（ 58） 15.875（ 58）

17.462（1116）

19.050（ 34）

B2 B3 C1 g1 g2 H r


C

N


C0

N

Mounting dimension

fMin.

mm(inch)

Maximum tightening

torque

N-m

CRH … VBUU

r

r

f

I

I81 I82

Separable Roller Followers

Non-separable Roller Followers


Stainless steel made


Cylindrical Roller Followers

IKO Roller Followers are bearings designed for outer ring rotation, in which needle rollers are incorporated in a thick walled outer ring. Both crowned and cylin-drical outer rings are available. The outer rings run directly on mating cam guide surfaces, and the crowned outer ring is effective in relieving the edge load caused by mounting errors. The cylindrical outer ring, on the other hand, has a large contact area with the mating cam guide surface and is suitable for appli-cations involving large loads or low cam guide surface hardness.In Roller Followers, there are two types of bearings available, the caged type and the full complement type. The caged type is useful for applications at high-speed rotation. The full complement type, on the other hand, is suitable for heavy-load applications at low-speed rotation or oscillating motions.Roller Followers include separable and non-separable types. Also, in addition to the open type, shield type and sealed type are available. The clearances between the side plates and outer ring of the shield type are narrow, and form labyrinths. In the sealed type, special synthetic rubber seals are assembled in these clearances, and they are effective in preventing penetration of dust and dirt.These bearings are available in a variety of types to suit almost any kind of application. They are widely used for cam mechanisms and for linear motions of conveying equipment.

Structures of Roller Followers

Outer ring

Inner ring

Needle roller

Cage

Outer ring

Side plate

Inner ring

Needle roller

Outer ring

Side plate

Inner ring

Needle roller

Seal

Outer ring

Shield plate

Inner ring

Side plate

Cylindrical roller

Cage

Structure of Separable Roller Follower

Structure of Separable Roller Follower

Structure of Non-separable Roller Follower

Structure of Cylindrical Roller Follower


I


TypesIn Roller Followers, types shown in Table 1 are avail-able.


These bearings are assembled by combining an outer ring, inner ring and Needle Roller Cage, which can be separated from one another. Thus, handling is easy. Oil lubrication is also easy, making them suitable for high-speed rotations.There are two types: type without inner ring RNAST and type with inner ring NAST. The type with inner ring includes open type, shield type, and sealed type.


These non-separable type bearings have side plates fixed on both sides of the inner ring, and include the caged type and the full complement type. Both shield type and sealed type are available. As well, these bearings also offer a highly corrosion-resistant stain-less steel specification, of which the products are suit-able for applications where rust prevention oil is not preferred, such as in cleanroom environments.Inch series Non-separable Roller Followers are full complement type bearings with black oxide surface treatment.

Table 1 Type of Roller Followers

Type

Metric series

Inch seriesNon-separable Roller Followers

CRY


NART…/SG


NURT


NART


RNAST，NAST

Without inner ring

With inner ring


Stainless steel made

RNAST … R

NAST … R

NAST … ZZ R

NAST … ZZUUR

NART … R

NART … UU R

NART … F R

NART … FUU R

NART … UUR/SG

RNAST

NAST

NAST … ZZ

NAST … ZZUU

NART … V RNART … VUUR

NURT … R

CRY … V RCRY … VUUR

NURT

CRY … VCRY … VUU

Open type

Open type

Shield type

Sealed type

Shield type

Sealed type

Shield type

Sealed type

Sealed type

Shield type

Shield type

Sealed type

With cage Full complement type

Crowned outer ring Cylindrical outer ring Crowned outer ring Cylindrical outer ring


These Roller Followers are lubricated with C-Lube, an IKO original thermosetting solid-type lubricant which fills the inner space of the bearing. C-Lube is lubricant made of a lot of lubricant and fine particles of super-high molecular polyolefin that are solidified by heat treatment. As the bearing rotates, the lubricant oozes out onto the raceway in proper quantities, maintaining the lubrication performance for a long period of time.


These bearings are full complement type bearings incorporat ing double rows of ful l complement cylindrical rollers in the outer ring, and can withstand large radial loads.Additionally, the outer ring is guided by the outer ring shoulder and the end face of cylindrical rollers to the axial direction.


NAST RZZUU10

NART RUUV10

NART R

R

15

NART F UU

UU

12

Example 1

Example 2

Example 3

Example 4

Model code

Metric series

Inch series

RNASTNASTNARTNART…/SGNURTCRY

Without inner ringWith inner ring

Separable Roller Follower

Non-separable Roller FollowerC-Lube Roller FollowerCylindrical Roller FollowerNon-separable Roller Follower

SizeThe size indicates the bore diameter of the inner ring. (unit: mm)In the inch series, the outer diameter of the outer ring is indicated in units of 1/16 inch.

High carbon steel madeStainless steel made

Type of materialNo symbolF(1)

With cageFull complement type

Roller guide methodNo symbolV

Seal structure (Separable Roller Follower)No symbolZZZZUU

Open typeShield typeSealed type

Shape of outer ring outside surfaceRNo symbol

With crowned outer ringWith cylindrical outer ring

Seal structure (Other Roller Follower)No symbolUU

Shield typeSealed type

/SG

Note(1)　Applicable to Non-separable Roller Followers only

Identification NumberSome examples of the identification number of Roller Followers are shown below.

I


AccuracyDimensional accuracy and rotational accuracy of Roller Followers are based on Tables 2, 3 and 4. Tolerances for the smallest single roller set bore diameter of Separable Roller Followers are shown in Table 5. Roller Followers with special accuracy can also be manufactured. Please contact IKO.

Table 4 Tolerances and allowable values of outer rings (Metric series)D

Nominal outside dia. of outer ring

mm

∆Dmp

Single plane mean outside dia. deviation

VDp （1）Outside dia. variation in

a single radial plane

(Max.)

VDmp （1）Mean outside dia. variation

(Max.)

Kea （1） Radial runout of assembled

bearing outer ring

(Max.)

VCsWidth variation

(Max.)Over Incl. High Low

6

18

30

50

80

18

30

50

80

120

0

0

0

0

0

− 8− 9− 11

− 13

− 15

10

12

14

16

19

6

7

8

10

11

15

15

20

25

35

Same as the tolerance values of VBs for d of the inner of the same bearing

unit: μ m

Note(1)　Also applicable to the inch series.

Table 3 Tolerances and allowable values of inner rings (Metric series)d

Nominal bore dia.

mm

∆dmpSingle plane mean bore dia.

deviation

VdpBore dia. variation in a single radial plane

(Max.)

VdmpMean bore dia.

variation

(Max.)

Kia Radial runout of assembled

bearing inner ring

(Max.)

VBsWidth variation

(Max.)Over Incl. High Low

2.5

10

18

30

10

18

30

50

0

0

0

0

− 8− 8− 10

− 12

10

10

13

15

6

6

8

9

10

10

13

15

15

20

20

20

unit: μ m

Table 2 TolerancesSeries

Dimensions and symbols

Metric series Inch series

Crowned outer ring

Crownedouter ring

Cylindricalouter ring

Cylindricalouter ring

Bore dia. of inner ring d

Outside dia. of outer ring D

Width of outer ring C

Width of inner ring B

Width of bearing B

Roller set bore dia. Fw

0− 50

0− 120

0− 120

h12

See Table 5.

See Table 3.

−h12

See Table 4. 0− 50

0− 25

0− 130

−

＋ 130

− 250

−

＋ 5− 10

＋ 2− 12

＋ 5

− 10

unit: μ m


d≦ 19.05

19.05＜ d

Non-separable Roller Follower

Cylindrical Roller Follower


ClearanceRadial internal clearances of Roller Followers are based on Table 6.

FitRoller Followers are generally used under the loading conditions in which the load direction is fixed in rela-tion to the inner ring and rotates in relation to the outer ring. The recommended fits for shafts are shown in Table 7. Those for the inch series are shown in the dimension table.

Maximum allowable static loadThe load that is applicable to Roller Followers is, in some cases, determined by the strength of the outer ring rather than by the load rating of the needle roller bearing. Therefore, the maximum allowable load that is limited by the strength of outer ring is specified.

Table 5 Tolerances of smallest single roller set bore diameter Fws minFw

Nominal roller set bore diameter

mm

∆Fws min

Deviation of smallest single roller set bore diameter

Over Incl. High Low

6

10

18

30

50

10

18

30

50

80

＋ 22

＋ 27

＋ 33

＋ 41

＋ 49

＋ 13

＋ 16

＋ 20

＋ 25

＋ 30

unit: μ m

Table 6 Radial internal clearanceIdentification number （1）

Metric series


Non-separable Roller Followers （2）



Min. Max.

Inch series


NAST 6R

NAST 8R〜 NAST12R

NAST15R〜 NAST25R

NAST30R〜 NAST40R

NAST45R， NAST50R

−−−−−

NART 5R

NART 6R〜 NART12R

NART15R〜 NART20R

NART25R〜 NART40R

NART45R， NART50R

−−−−−

−−−−−

NURT15R〜 NURT30-1R



−−

−−−−

−−−−

CRY12R〜 CRY56R

CRY64R

5

5

10

10

15

20

25

30

35

45

20

25

30

40

50

45

50

60

60

70

unit: μ m

Note (1)　Also applicable to the full complement type, cylindrical outer ring type, shield type and sealed type. (2)　Also applicable to C-Lube Roller Followers.

Note (1)　Also applicable to C-Lube Roller Followers.

Table 7 Recommended fit (Metric series)

Type Tolerance class of shaft

Separable Roller Followerswithout inner ring

with inner ring

k5，k6

g6，h6Non-separable Roller Followers(1)


I


Track Capacity (Tensile strength 1250N/mm2). When the hardness of the mating cam guide surface differs from 40HRC, the track capacity is obtained by multiplying the value by the track capacity factor shown in Table 9.If lubrication between the outer ring and the mating cam guide surface is insufficient, seizure and/or wear may occur depending on the application. Therefore, pay attention to lubrication and surface roughness of the mating cam guide especially in the case of high-speed rotation such as for cam mechanisms.

Track capacity is defined as the load that can be con-tinuously applied on a Roller Follower placed on a steel cam guide surface without causing deformation and indentation on the cam guide surface when the outer ring of the Roller Follower makes contact with the mat-ing cam guide surface (plane). The track capacities shown in Tables 8.1 and 8.2 are applicable when the hardness of the mating cam guide surface is 40HRC

Table 8.1 Track capacity (Metric series)Roller Followers with crowned outer ring Roller Followers with cylindrical outer ring

Identification number （1） Separable Roller

FollowersNon-separable （3）Roller Followers

CylindricalRoller Followers

Track capacity


Track capacity

Identification number （2）

Track capacity


Track capacity

RNAST 5R(R)NAST 6R(R)NAST 8R(R)NAST10R(R)NAST12R(R)NAST15R

−(R)NAST17R

−(R)NAST20R

−(R)NAST25R

−(R)NAST30R

−(R)NAST35R

−(R)NAST40R

−(R)NAST45R

−(R)NAST50R

−

NART 5R NART 6R NART 8R NART10R NART12R NART15R−

NART17R−

NART20R−

NART25R−

NART30R−

NART35R−

NART40R −

NART45R −

NART50R−

−−−−−

NURT15 R NURT15-1R NURT17 R NURT17-1R NURT20 R NURT20-1R NURT25 R NURT25-1R NURT30 R NURT30-1R NURT35 R NURT35-1R NURT40 R NURT40-1R NURT45 R NURT45-1R NURT50 R NURT50-1R

1 040 1 330 1 850 2 470 2 710 3 060 3 910 3 660 4 530 4 530 5 190 5 190 6 580 6 580 8 020 8 020 9 220 9 220 10 800 9 990 12 40010 80014 000

RNAST 5 (R)NAST 6 (R)NAST 8 (R)NAST10 (R)NAST12 (R)NAST15

− (R)NAST17

− (R)NAST20

− (R)NAST25

− (R)NAST30

−(R)NAST35

− (R)NAST40

− (R)NAST45

− (R)NAST50

−

2 310 3 550 3 980 5 610 5 990 6 550−

10 900−

12 800−

14 100−

22 100−

25 700−

26 900−

28 500−

30 200−

−NAST 6ZZNAST 8ZZNAST10ZZNAST12ZZNAST15ZZ

−NAST17ZZ

−NAST20ZZ

−NAST25ZZ

−NAST30ZZ

−NAST35ZZ

−NAST40ZZ

−NAST45ZZ

−NAST50ZZ

−

− 3 550 4 490 6 890 7 350 8 030 −

11 700−

13 800−

15 300−

22 100−

25 700−

30 300−

32 200−

34 000−

−−−−−

NURT15 NURT15-1 NURT17 NURT17-1 NURT20 NURT20-1 NURT25 NURT25-1 NURT30 NURT30-1 NURT35 NURT35-1 NURT40 NURT40-1 NURT45 NURT45-1 NURT50 NURT50-1

−−−−−

11 50013 70013 60016 00020 00022 10022 10026 40031 60036 70036 70040 80044 20049 70047 00055 30049 70060 800

unit: N

Notes(1)　Also applicable to the full complement type, shield type, and sealed type.　 (3)　Also applicable to C-Lube Roller Followers. 　　 (2)　Also applicable to the sealed type.

Table 8.2 Track capacity (Inch series)


Track capacity


Track capacity

CRY12RCRY14RCRY16RCRY18RCRY20RCRY22RCRY24RCRY26RCRY28RCRY30RCRY32RCRY36RCRY40RCRY44RCRY48RCRY52RCRY56RCRY64R

853 1 050 1 420 1 660 2 160 2 450 3 410 3 820 4 210 4 610 5 690 6 640 8 97010 20011 40012 70014 10016 800

CRY12CRY14 CRY16 CRY18 CRY20 CRY22 CRY24 CRY26 CRY28 CRY30 CRY32 CRY36 CRY40 CRY44 CRY48 CRY52 CRY56 CRY64

4 490 5 240 7 270 7 700 10 700 11 800 15 400 16 700 21 000 22 500 30 800 34 700 44 900 49 400 64 300 69 600 87 000113 000

unit: N

Note(1)　Also applicable to the sealed type.

Table 9 Track capacity factor

HardnessHRC

Tensile strengthN/mm2

Track capacity factor

Cylindrical outer ringCrowned outer ring

202530353840424446485052545658

760840950

1 0801 1801 2501 3401 4351 5301 6351 7601 8802 0152 1502 290

0.220.310.450.650.851.001.231.521.852.272.803.464.215.136.26

0.370.460.580.750.891.001.151.321.511.731.992.292.612.973.39


Allowable Rotational SpeedThe allowable rotational speed of Roller Followers is

affected by mounting and operating conditions. For dn value with only pure radial load applied, use values in Table 10 or less as a guideline. Considering that axial loads also act under actual

operating conditions, the recommended dn value is 1/10 of the value shown in the table. For use with oscillating rotation, use a C-Lube Roller

Follower dn value of 8,000 or less as a guideline. For use with one-way or continuous rotation, please con-sult IKO.

LubricationIn Sealed Type Roller Followers, Heavy Duty Type Roller Followers and Inch series Roller Followers, ALVANIA GREASE S2 (Shell Lubricants Japan K.K.) is prepacked as the lubricating grease.For Roller Followers without prepacked grease, grease or oil should be supplied through the oil hole of the inner ring for use. If they are used without lubri-cation, wear of rolling contact surfaces may take place, leading to a short bearing life.

Oil HoleOpen Type Separable Roller Followers have no oil hole. Inner rings of other types of Metric series Roller Followers have an oil hole. Inch series inner rings have an oil groove and an oil hole.

Mounting

Table 10 dn values of Roller Followers （1） Lubricant

TypeGrease Oil

Caged type


Cylindrical Roller Follower

84 000

42 000

72 000

140 000

70 000

120 000

Note(1)　dn value＝ d× n　　　　 where, d：Bore diameter of bearing mm　　　　　　　 n：Rotational speed min-1

Fig. 1 Mating seating dimension "a"

Fig. 2 Position of oil hole and load direction

Fig. 3 Mounting example of Roller Follower without inner ring

In case of shield and sealed types, match the side surface correctly to the mating seating surface indi-

cated by the dimension a shown in the dimension table, and fix them. (See Fig. 1.) When mounting Roller Followers, pay special atten-tion to avoid locating the oil hole of the inner ring within the loading zone. This may lead to a short bearing life. (See Fig. 2.)When mounting Sealed Type Separable Roller Followers, do not cause the side plates to come off. If they come off, set them again in place taking care to avoid damaging the seal lips.

In case of Roller Followers without an inner ring, the shaft requires heat treatment and grinding fin-ish. The recommended surface hardness of the shaft is 58〜 64HRC, and the recommended rough-ness of the shaft is 0.2μmRa or less.Also, the outer ring and cage are guided by side surfaces of the mounting parts. Therefore, it is rec-ommended that the side surfaces of the mounting parts be finished by grinding or at least by machin-ing.(See Fig. 3.)In Non-separable Roller Followers, the side plates are press-fitted. Therefore, when mounting the Roller Followers, do not push the side plates/outer rings.Pushing on the side plates or outer rings may cause unsatisfactory product performance.

Oil hole

Load

2

1

3

5

4

I


Note(1)　　 Minimum allowable value of chamfer dimension rRemarks1. No oil hole is provided. 2. Not provided with prepacked grease. Perform proper lubrication for use.

Shaft dia.

mm



7

10

12

14

16

20

22

25

30

38

42

50

55

60

RNAST 5 R

RNAST 6 R

RNAST 8 R

RNAST 10 R

RNAST 12 R

RNAST 15 R

RNAST 17 R

RNAST 20 R

RNAST 25 R

RNAST 30 R

RNAST 35 R

RNAST 40 R

RNAST 45 R

RNAST 50 R

RNAST 5

RNAST 6

RNAST 8

RNAST 10

RNAST 12

RNAST 15

RNAST 17

RNAST 20

RNAST 25

RNAST 30

RNAST 35

RNAST 40

RNAST 45

RNAST 50

8.9

13.9

23.5

42.5

49.5

50

90

135

152

255

375

420

460

500

7

10

12

14

16

20

22

25

30

38

42

50

55

60


Fw

16

19

24

30

32

35

40

47

52

62

72

80

85

90

D

7.8

9.8

9.8

11.8

11.8

11.8

15.8

15.8

15.8

19.8

19.8

19.8

19.8

19.8

C

0.3

0.3

0.6

1

1

1

1

1

1

1

1

1.5

1.5

1.5

2 710

4 160

5 650

9 790

10 500

12 400

17 600

19 400

20 800

30 500

32 400

35 900

37 400

38 900

2 390

4 550

5 890

9 680

10 900

14 300

20 900

24 500

28 400

45 400

50 600

61 100

66 400

71 700

Mass (Ref.)

g


C

N


C0

N

Open typers min(1)

RNAST … R RNAST

Separable Roller Followers, Open Type With Cage/Without Inner Ring

Shaft dia. 7−60mm

ROLLER FOLLOWERS

Shaft dia. 6−50mm

Note(1)　　 Minimum allowable value of chamfer dimension r or r 1Remarks1. No oil hole is provided.Remarks2. Not provided with prepacked grease. Perform proper lubrication for use.

Shaft dia.

mm



6

8

10

12

15

17

20

25

30

35

40

45

50

NAST 6 R

NAST 8 R

NAST 10 R

NAST 12 R

NAST 15 R

NAST 17 R

NAST 20 R

NAST 25 R

NAST 30 R

NAST 35 R

NAST 40 R

NAST 45 R

NAST 50 R

NAST 6

NAST 8

NAST 10

NAST 12

NAST 15

NAST 17

NAST 20

NAST 25

NAST 30

NAST 35

NAST 40

NAST 45

NAST 50

17.8

28

49.5

58

62

109

157

180

320

440

530

580

635

6

8

10

12

15

17

20

25

30

35

40

45

50


d

19

24

30

32

35

40

47

52

62

72

80

85

90

D

10

10

12

12

12

16

16

16

20

20

20

20

20

B

9.8

9.8

11.8

11.8

11.8

15.8

15.8

15.8

19.8

19.8

19.8

19.8

19.8

C

0.3

0.6

1

1

1

1

1

1

1

1

1.5

1.5

1.5

rs min

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.6

0.6

1

1

1

r1s min

10

12

14

16

20

22

25

30

38

42

50

55

60

4 160

5 650

9 790

10 500

12 400

17 600

19 400

20 800

30 500

32 400

35 900

37 400

38 900

4 550

5 890

9 680

10 900

14 300

20 900

24 500

28 400

45 400

50 600

61 100

66 400

71 700

LRT 61010 S

LRT 81210 S

LRT 101412 S

LRT 121612 S

LRT 152012 S

LRT 172216 S

LRT 202516 S

LRT 253016 S

LRT 303820 S

LRT 354220 S

LRT 405020 S

LRT 455520 S

LRT 506020 S

Mass (Ref.)

g


C

N


C0

N

Open typeFw

(1)(1)

NASTNAST … R


Separable Roller Followers, Open Type With Cage/With Inner Ring

I


Remarks1. The inner ring has an oil hole. 2. The sealed type is provided with prepacked grease. The shield type is not provided with prepacked grease. Perform proper

lubrication for use.

Shaft dia.

mm



6

8

10

12

15

17

20

25

30

35

40

45

50

NAST 6 ZZR

NAST 8 ZZR

NAST 10 ZZR

NAST 12 ZZR

NAST 15 ZZR

NAST 17 ZZR

NAST 20 ZZR

NAST 25 ZZR

NAST 30 ZZR

NAST 35 ZZR

NAST 40 ZZR

NAST 45 ZZR

NAST 50 ZZR

Crowned outer ring

NAST 6 ZZUUR

NAST 8 ZZUUR

NAST 10 ZZUUR

NAST 12 ZZUUR

NAST 15 ZZUUR

NAST 17 ZZUUR

NAST 20 ZZUUR

NAST 25 ZZUUR

NAST 30 ZZUUR

NAST 35 ZZUUR

NAST 40 ZZUUR

NAST 45 ZZUUR

NAST 50 ZZUUR


NAST 6 ZZUU

NAST 8 ZZUU

NAST 10 ZZUU

NAST 12 ZZUU

NAST 15 ZZUU

NAST 17 ZZUU

NAST 20 ZZUU

NAST 25 ZZUU

NAST 30 ZZUU

NAST 35 ZZUU

NAST 40 ZZUU

NAST 45 ZZUU

NAST 50 ZZUU

NAST 6 ZZ

NAST 8 ZZ

NAST 10 ZZ

NAST 12 ZZ

NAST 15 ZZ

NAST 17 ZZ

NAST 20 ZZ

NAST 25 ZZ

NAST 30 ZZ

NAST 35 ZZ

NAST 40 ZZ

NAST 45 ZZ

NAST 50 ZZ

24.5

39

65

75

83

135

195

225

400

550

710

760

830

Mass (Ref.)

g


NAST … ZZR

ROLLER FOLLOWERS

Separable Roller Followers, Shield Type With Cage/With Inner Ring

Separable Roller Followers, Sealed Type With Cage/With Inner Ring

Shaft dia. 6−50mm

6

8

10

12

15

17

20

25

30

35

40

45

50


d

19

24

30

32

35

40

47

52

62

72

80

85

90

D

14

14

16

16

16

20

20

20

25

25

26

26

26

B

13.8

13.8

15.8

15.8

15.8

19.8

19.8

19.8

24.8

24.8

25.8

25.8

25.8

14

17.5

23.5

25.5

29

32.5

38

43

50.5

53.5

61.5

66.5

76

2.5

2.5

2.5

2.5

2.5

3

3

3

4

4

4

4

4

0.8

0.8

0.8

0.8

0.8

1

1

1

1.2

1.2

1.2

1.2

1.2

C a e f

4 160

5 650

9 790

10 500

12 400

17 600

19 400

20 800

30 500

32 400

35 900

37 400

38 900

4 550

5 890

9 680

10 900

14 300

20 900

24 500

28 400

45 400

50 600

61 100

66 400

71 700


C

N


C0

N

NAST … ZZ NAST … ZZUUR NAST … ZZUU

I


ROLLER FOLLOWERS

Shaft dia. 5−40mm



Shaft dia.

mm



5

6

8

10

12

15

17

20

25

30

35

40

NART 5 R

NART 6 R

NART 8 R

NART 10 R

NART 12 R

NART 15 R

NART 17 R

NART 20 R

NART 25 R

NART 30 R

NART 35 R

NART 40 R

NART 5 VR

NART 6 VR

NART 8 VR

NART 10 VR

NART 12 VR

NART 15 VR

NART 17 VR

NART 20 VR

NART 25 VR

NART 30 VR

NART 35 VR

NART 40 VR

NART 5 UUR

NART 6 UUR

NART 8 UUR

NART 10 UUR

NART 12 UUR

NART 15 UUR

NART 17 UUR

NART 20 UUR

NART 25 UUR

NART 30 UUR

NART 35 UUR

NART 40 UUR

NART 5 VUUR

NART 6 VUUR

NART 8 VUUR

NART 10 VUUR

NART 12 VUUR

NART 15 VUUR

NART 17 VUUR

NART 20 VUUR

NART 25 VUUR

NART 30 VUUR

NART 35 VUUR

NART 40 VUUR

14.5 15.1

20.5 21.5

41.5 42.5

64.5 66.5

71 73

102106

149155

250255

285295

470485

640655

845865


Mass (Ref.)

g

Crowned outer ring Crowned outer ring


NART … R

Non-separable Roller Followers ·


With Cage/With Inner Ring

Full Complement Type/With Inner Ring

5 5

6 6

8 8

1010

1212

1515

1717

2020

2525

3030

3535

4040

1616

1919

2424

3030

3232

3535

4040

4747

5252

6262

7272

8080

1212

1212

1515

1515

1515

1919

2121

2525

2525

2929

2929

3232

1111

1111

1414

1414

1414

1818

2020

2424

2424

2828

2828

3030

1212

1414

17.517.5

23.523.5

25.525.5

2929

32.532.5

3838

4343

50.550.5

53.553.5

61.561.5

3 6506 810

4 2507 690

5 64011 800

8 03015 600

8 58016 800

13 70025 200

17 60032 000

23 00041 600

24 70045 500

33 60059 900

35 70063 100

44 90076 300

3 6808 370

4 74010 300

5 90015 600

7 54018 100

8 47020 500

16 40036 400

21 00046 300

30 70067 300

35 40079 100

51 400110 000

57 400121 000

81 500164 000

3 6807 310

4 74010 300

5 90015 600

7 54017 500

8 47018 600

16 40024 000

21 00033 100

30 70067 300

35 40079 100

51 40092 500

57 400121 000

81 500164 000


d D B C a


C

N


C0

N


　N

NART … VR NART … UUR NART … VUUR

I




Shaft dia.

mm



45

50

NART 45 R

NART 50 R

NART 45 VR

NART 50 VR

NART 45 UUR

NART 50 UUR

NART 45 VUUR

NART 50 VUUR

915935

9801 010


Mass (Ref.)

g

Crowned outer ring Crowned outer ring


NART … R

ROLLER FOLLOWERS

Non-separable Roller Followers ·


With Cage/With Inner Ring

Full Complement Type/With Inner Ring


5050

4545

8585

9090

3232

3232

3030

3030

66.566.5

7676

46 80080 300

48 60084 300

88 600181 000

88 600181 000

95 600198 000

95 600198 000



　N

d D B C a


C

N


C0

N

NART … VR NART … UUR NART … VUUR

I


Shaft dia.

mm

Identification number Mass (Ref.)Boundary dimensions

mmBasic dynamic

load rating

CN


C0

N


NShield type Sealed type g d D B C a

5 NART 5 FR NART 5 FUUR 13 5 16 12 11 12 2 930 2 920 2 920

6 NART 6 FR NART 6 FUUR 19 6 19 12 11 14 3 400 3 790 3 790

8 NART 8 FR NART 8 FUUR 39 8 24 15 14 17.5 4 340 5 510 5 510

10 NART 10 FR NART 10 FUUR 61 10 30 15 14 22.5 6 330 7 830 7 830

12 NART 12 FR NART 12 FUUR 67 12 32 15 14 25.5 6 510 8 400 8 400

15 NART 15 FR NART 15 FUUR 99 15 35 19 18 27.5 9 620 14 700 14 700

17 NART 17 FR NART 17 FUUR 146 17 40 21 20 31 11 800 20 200 20 200

20 NART 20 FR NART 20 FUUR 241 20 47 25 24 36.5 16 500 27 700 27 700

25 NART 25 FR NART 25 FUUR 269 25 52 25 24 43 19 800 28 300 28 300

30 NART 30 FR NART 30 FUUR 447 30 62 29 28 50 26 900 41 200 41 200

R500

D d

C

a D d

C

a

B BR500

ROLLER FOLLOWERS

Non-separable Roller Followers · Stainless Steel Made With Cage/With Inner Ring



Shaft dia. 5−30mm NART … FR

R500

D d

C

a D d

C

a

B BR500

ROLLER FOLLOWERS

NART … FUUR

I


NART … UUR/SG

C

B

dD a

R=500

ROLLER FOLLOWERS

C-Lube Roller Followers With Cage/With Inner Ring

Shaft dia. 5−20mm

Remark　 This bearing cannot be re-lubricated as thermosetting solid-type lubricant C-Lube fills its inner space.

1N=0.102kgf=0.2248lbs.1mm=0.03937inch

Shaft dia.

mm




C

N


C0

N


NSealed type d D B C a

g

5 NART 5 UUR / SG 14.5 5 16 12 11 12 3 650 3 680 3 680

6 NART 6 UUR / SG 20.5 6 19 12 11 14 4 250 4 740 4 740

8 NART 8 UUR / SG 41.5 8 24 15 14 17.5 5 640 5 900 5 900

10 NART 10 UUR / SG 64.5 10 30 15 14 23.5 8 030 7 540 7 540

12 NART 12 UUR / SG 71 12 32 15 14 25.5 8 580 8 470 8 470

15 NART 15 UUR / SG 102 15 35 19 18 29 13 700 16 400 16 400

17 NART 17 UUR / SG 149 17 40 21 20 32.5 17 600 21 000 21 000

20 NART 20 UUR / SG 250 20 47 25 24 38 23 000 30 700 30 700

ROLLER FOLLOWERS

I



NURT … R

Cylindrical Roller Followers Full Complement Type/With Inner Ring


Note(1)　　 Minimum allowable value of chamfer dimension r or r1Remarks1. The inner ring has an oil hole. 2. Provided with prepacked grease.

Shaft dia.

mm


15

17

20

25

30

35

40

45

50

NURT 15 RNURT 15-1 R









NURT 15 NURT 15-1

NURT 17NURT 17-1

NURT 20 NURT 20-1

NURT 25NURT 25-1

NURT 30NURT 30-1

NURT 35NURT 35-1

NURT 40 NURT 40-1

NURT 45 NURT 45-1

NURT 50NURT 50-1

Mass (Ref.)

g (1)

100160

147222

245321

281450

466697

630840

8171 130

8831 400

9501 690

1515

1717

2020

2525

3030

3535

4040

4545

5050

3542

4047

4752

5262

6272

7280

8090

85100

90110

1919

2121

2525

2525

2929

2929

3232

3232

3232

1818

2020

2424

2424

2828

2828

3030

3030

3030

2020

2222

2727

3131

3838

4444

4949

5353

5858

0.60.6

11

11

11

11

11

11

11

11

d D B C a rs minCrowned outer ring Cylindrical outer ring

ROLLER FOLLOWERS


C

N


C0

N


　N

(1)

23 40023 400

25 20025 200

38 90038 900

43 10043 100

58 20058 200

63 90063 900

86 50086 500

91 50091 500

96 30096 300

27 30027 300

30 90030 900

49 00049 000

58 10058 100

75 30075 300

88 80088 800

122 000122 000

135 000135 000

148 000148 000

11 80027 300

20 30030 900

27 20049 000

30 00058 100

35 20075 300

57 00088 800

75 300122 000

78 700135 000

82 100148 000

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

0.60.6

0.60.6

0.60.6

0.60.6

r1s min

r1r1

C

B

r

r

d aD

NURT

I


ROLLER FOLLOWERS

Non-separable Roller Followers, Inch Series Full Complement Type / With Inner Ring

Shaft dia. 6.350−31.750mm CRY … VR

Remarks1. The inner ring has an oil groove and an oil hole. 2. Provided with prepacked grease.

Shaft dia.

mm(inch)


Shield typeCrowner outer ring

Sealed typeCrowned outer ring

6.350（14）7.938（516）9.525（38）

11.112（716）12.700（12）

15.875（58）

19.050（34）

25.400（ 1 ）

28.575（118）31.750（114）

CRY 12 VRCRY 14 VR

CRY 16 VRCRY 18 VR

CRY 20 VRCRY 22 VR

CRY 24 VRCRY 26 VR

CRY 28 VRCRY 30 VR

CRY 32 VRCRY 36 VR

CRY 40 VRCRY 44 VR

CRY 48 VRCRY 52 VR

CRY 56 VR

CRY 64 VR

CRY 12 VUURCRY 14 VUUR








CRY 56 VUUR

CRY 64 VUUR

2434

6.350（ 14）6.350（ 14）

7.938（ 516）7.938（ 516）

9.525（ 38）9.525（ 38）

11.112（ 716）11.112（ 716）

12.700（ 12）12.700（ 12）

15.875（ 58）15.875（ 58）

19.050（ 34）19.050（ 34）

25.400（1 ）25.400（1 ）

28.575（118）

31.750（114）

5672

103128

176210

276321

442575

8351 031

1 3701 640

2 160

3 190

Mass(Ref.)


g d

19.050（ 34）22.225（ 78）

12.700（ 12）12.700（ 12）

15.875（ 58）15.875（ 58）

19.050（ 34） 19.050（ 34）

25.400（1 ）28.575（118）

31.750（114） 34.925（138）

38.100（112）41.275（158）

44.450（134）47.625（178）

50.800（2 ）57.150（214）

63.500（212）69.850（234）

76.200（3 ）82.550（314）

88.900（312）

101.600（4 ）

D

14.288(0.5625)14.288(0.5625)

17.463(0.6875)17.463(0.6875)

20.638(0.8125)20.638(0.8125)

23.813(0.9375)23.813(0.9375)

26.988(1.0625)26.988(1.0625)

33.338(1.3125)33.338(1.3125)

39.688(1.5625)39.688(1.5625)

46.038(1.8125)46.038(1.8125)

52.388(2.0625)

58.738(2.3125)

B

22.225（ 78）22.225（ 78）

25.400（1 ）25.400（1 ）

31.750（114）31.750（114）

38.100（112）38.100（112）

44.450（134）44.450（134）

50.800（2 ）

57.150（214）

C

D

C

R

a

B

d

CRY … VUUR

14.4(0.567)14.4(0.567)

19.6(0.772)19.6(0.772)

25.0(0.984)25.0(0.984)

28.8(1.134)28.8(1.134)

32.7(1.287)32.7(1.287)

36.0(1.417)36.0(1.417)

43.3(1.705)43.3(1.705)

54.0(2.125)54.0(2.125)

61.9(2.437)

71.0(2.797)

250（10）250（10）

300（12）300（12）

360（14）360（14）

500（20）500（20）

500（20）500（20）

600（24）600（24）

760（30）760（30）

760（30）760（30）

760（30）

760（30）

8 7108 710

6.3326.332

7.9207.920

9.507 9.507

11.09511.095

12.68212.682

15.85715.857

19.03219.032

25.37725.377

28.522

31.727

6.3426.342

7.9307.930

9.517 9.517

11.10511.105

12.69212.692

15.86715.867

19.04219.042

25.39025.390

28.565

31.740

6.3486.348

7.9357.935

9.5239.523

11.11011.110

12.69812.698

15.87315.873

19.04819.048

25.39725.397

28.572

31.747

6.3586.358

7.9457.945

9.5339.533

11.12011.120

12.70812.708

15.88315.883

19.05819.058

25.41025.410

28.585

31.760

6.3536.353

7.9407.940

9.5289.528

11.11511.115

12.70812.708

15.88315.883

19.05819.058

25.40825.408

28.583

31.758

6.3636.363

7.9507.950

9.5389.538

11.12511.125

12.71812.718

15.89315.893

19.06819.068

25.42025.420

28.595

31.770

13 10013 100

23 60023 600

28 20028 200

35 30035 300

45 70045 700

61 40061 400

77 60077 600

111 000

142 000

12 30012 300

22 70022 700

31 70031 700

40 10040 100

55 60055 600

80 60080 600

116 000116 000

172 000172 000

239 000

317 000

a R


C

N


C0

N

Shaft dia.　mm

Push fit Drive fit Press fit

Min. Min. Min.Max. Max. Max.

a

C

D

R

d

B

I


CRY … V

ROLLER FOLLOWERS

Non-separable Roller Followers, Inch Series Full Complement Type /With Inner Ring

Shaft dia. 6.350−31.750mm

Remarks1. The inner ring has an oil groove and an oil hole. 2. Provided with prepacked grease.

Shaft dia.

mm(inch)


Shield typeCylindrical outer ring

Sealed typeCylindrical outer ring

6.350（14）7.938（516）9.525（38）

11.112（716）12.700（12）

15.875（58）

19.050（34）

25.400（ 1 ）

28.575（118）31.750（114）

CRY 12 VCRY 14 V

CRY 16 VCRY 18 V

CRY 20 VCRY 22 V

CRY 24 VCRY 26 V

CRY 28 VCRY 30 V

CRY 32 VCRY 36 V

CRY 40 VCRY 44 V

CRY 48 VCRY 52 V

CRY 56 V

CRY 64 V

CRY 12 VUUCRY 14 VUU








CRY 56 VUU

CRY 64 VUU

2434

6.350（ 14）6.350（ 14）

7.938（ 516）7.938（ 516）

9.525（ 38）9.525（ 38）

11.112（ 716）11.112（ 716）

12.700（ 12）12.700（ 12）

15.875（ 58）15.875（ 58）

19.050（ 34）19.050（ 34）

25.400（1 ）25.400（1 ）

28.575（118）

31.750（114）

5672

103128

176210

276321

442575

8351 031

1 3701 640

2 160

3 190

Mass(Ref.)


g d

19.050（ 34）22.225（ 78）

12.700（ 12）12.700（ 12）

15.875（ 58）15.875（ 58）

19.050（ 34） 19.050（ 34）

25.400（1 ）28.575（118）

31.750（114） 34.925（138）

38.100（112）41.275（158）

44.450（134）47.625（178）

50.800（2 ）57.150（214）

63.500（212）69.850（234）

76.200（3 ）82.550（314）

88.900（312）

101.600（4 ）

D

14.288(0.5625)14.288(0.5625)

17.463(0.6875)17.463(0.6875)

20.638(0.8125)20.638(0.8125)

23.813(0.9375)23.813(0.9375)

26.988(1.0625)26.988(1.0625)

33.338(1.3125)33.338(1.3125)

39.688(1.5625)39.688(1.5625)

46.038(1.8125)46.038(1.8125)

52.388(2.0625)

58.738(2.3125)

B

22.225（ 78）22.225（ 78）

25.400（1 ）25.400（1 ）

31.750（114）31.750（114）

38.100（112）38.100（112）

44.450（134）44.450（134）

50.800（2 ）

57.150（214）

C

C

B

r

r

D d a

CRY … VUU

14.4(0.567)14.4(0.567)

19.6(0.772)19.6(0.772)

25.0(0.984)25.0(0.984)

28.8(1.134)28.8(1.134)

32.7(1.287)32.7(1.287)

36.0(1.417)36.0(1.417)

43.3(1.705)43.3(1.705)

54.0(2.125)54.0(2.125)

61.9(2.437)

71.0(2.797)

0.794（ 132）0.794（ 132）

1.191（ 364）1.588（ 116）

1.588（ 116）1.588（ 116）

1.588（ 116）1.588（ 116）

1.588（ 116）1.588（ 116）

1.588（ 116）1.588（ 116）

2.381（ 332）2.381（ 332）

2.381（ 332）2.381（ 332）

2.381（ 332）

2.381（ 332）

8 7108 710

6.3326.332

7.9207.920

9.507 9.507

11.09511.095

12.68212.682

15.85715.857

19.03219.032

25.37725.377

28.522

31.727

6.3426.342

7.9307.930

9.517 9.517

11.10511.105

12.69212.692

15.86715.867

19.04219.042

25.39025.390

28.565

31.740

6.3486.348

7.9357.935

9.5239.523

11.11011.110

12.69812.698

15.87315.873

19.04819.048

25.39725.397

28.572

31.747

6.3586.358

7.9457.945

9.5339.533

11.12011.120

12.70812.708

15.88315.883

19.05819.058

25.41025.410

28.585

31.760

6.3536.353

7.9407.940

9.5289.528

11.11511.115

12.70812.708

15.88315.883

19.05819.058

25.40825.408

28.583

31.758

6.3636.363

7.9507.950

9.5389.538

11.12511.125

12.71812.718

15.89315.893

19.06819.068

25.42025.420

28.595

31.770

13 10013 100

23 60023 600

28 20028 200

35 30035 300

45 70045 700

61 40061 400

77 60077 600

111 000

142 000

12 30012 300

22 70022 700

31 70031 700

40 10040 100

55 60055 600

80 60080 600

116 000116 000

172 000172 000

239 000

317 000

a r


C

N


C0

N

Shaft dia.　mm

Push fit Drive fit Press fit

Min. Min. Min.Max. Max. Max.

C

B

r

r

D d a

JCRBHVCRBFVCRB(C)CRBTCRBTFCRBS

J1 J2

High Rigidity Type Crossed Roller Bearings V

Mounting Holed Type High Rigidity Crossed Roller Bearings V

Standard Type Crossed Roller Bearings

Super Slim Type Crossed Roller Bearings

Mounting Holed Type Super Slim Crossed Roller Bearings

Slim Type Crossed Roller Bearings

Structure and FeaturesIKO Crossed Roller Bearings are compact bearings with their rollers alternately crossed at right angles to each other between inner and outer rings. They can take loads from any directions at the same time such as radial, thrust and moment loads. The rollers make line-contact with raceway surfaces, and, therefore, elastic deformation due to bearing loads is very small.These bearings are widely used in the rotating parts of industrial robots, machine tools, medical equip-ment, etc., which require compactness, high rigidity and high rotational accuracy.In addition, bearings made of stainless steel or those with inner and outer rings provided with mounting holes are also available on request. Please contact IKO.

Outer ring

RollerSeparator

Inner ring

Outer ring

Roller

Inner ring

Outer ring separationprevention boltSeal

Structure of Crossed Roller Bearings

Separator

Outer ring

Roller

Inner ring

CRBHV AHigh Rigidity Type Crossed Roller Bearings V



Slim Type Crossed Roller BearingsMounting Holed Type Super Slim Crossed Roller Bearings

Cage

Outer ring

Inner ring

Roller


Outer ring

RollerSeparator

Inner ring

CRBTF…A

CRBFV…A

CRBS

Outer ring

RollerSeparator

Inner ring


1N=0.102kgf=0.2248lbs.1mm=0.03937inchJ3 J4

TypesCrossed Roller Bearings are available in the types shown in Table 1.


Both inner and outer rings have a solid one-piece construction. Therefore, high accuracy and high rigid-ity are achieved, and mounting errors can be mini-mized. As separators are incorporated between the cylindrical rollers for smooth rotation, these bearings are suitable for applications where rotational speed is comparatively high.

Mounting Holed TypeHigh Rigidity Crossed Roller Bearings

Mounting holes are prepared on outer ring and inner ring providing easy mounting together with high rigidity and high accuracy.


The outer ring is made of two split pieces, which are bolted together to prevent separation during trans-portation or mounting. So, handling is easy.


This Type is extremely compact bearing having 5.5mm of sectional height and 5mm of width. Separators are incorporated between Cylindrical rollers for smooth rotation. These compactness, light-ness and smoothness contribute downsizing of the machine and saving driving power.


These bearings are extremely compact and light-weight at a width of just 5 mm, with both outer and inner rings integrated (non-separable), and mounting holes in the rings for easy mounting to equipment.


These bearings are slim bearings having a small out-side diameter, in comparison with the bore diameter, and a narrow width. The type with cage and the type with separator provide smooth rotation and are suit-able for applications where rotational speed is com-paratively high.

Table 1 Crossed Roller Bearing Type

CC0

Features of Super Slim Type Crossed Roller Bearing CRBT

Sectional shape

Super Slim Slim High rigidity

Width

5mm

5.5mm

CRBT

58

13

5.5 8

15

mmmmmmNNg

61 5 5.5 2280 3200 32.3 0.11 0.38

66 8 8 4900 6170 84 0.29 1.00

80 13 15 17300 20900 290 1.00 3.45

CRBS508 CRBHV5013A

CRBFV, CRBTF

High rigidity and high accuracy

The world's thinnest roller type!

Very low cross sectional height of 5.5 mm

Significant weight saving by 38% in comparison

with conventional types was realized

Weight reduction is thoroughly pursued. The mass ratio is 0.38 and significant weight saving was realized in comparison with conventional slim type CRBS (bearing bore diameter 50 mm).

Features of Mounting Holed Type Crossed Roller Bearings　CRBFV, CRBTF

The single structure to reduce the mounting errors is adopted for both inner and outer rings. Further, mounting holes for direct fixing on mating mounting surface are available. So high rigidity and high accuracy guide can be easily realized, being less subject to the structure of the housing and the accuracy.

Contributing to miniaturization

It can be easily mounted to a device with bolts without need for housing and fixing plate, so surrounding parts of the bearing can be made compact.Further, it allows for reduction of the number of parts and assembly processes, which contributes to miniaturization and weight saving of devices.

The cross sectional height is reduced by 69% in comparison with CRBS, which was the thinnest before (bearing bore diameter 50 mm).The width is also as small as 5 mm and the cross sectional area is reduced by 43% in comparison with conventional products.

Comparison of bearing bore diameter 50 mm

Item

Series

CRBT505A

Outer diameter

Sectional height

Mass

Compared with CRBS

Complex mounting structure is not required

Easy bolt-on installation

With mounting holes

No division for both inner and outer rings and high rigidity single structure

Mounting Holed Type High Rigidity Crossed Roller Bearing VMounting Holed Type Super Slim Crossed Roller Bearings

Single structure for both inner and outer rings!

Compared with CRBHV

Type With Cage With Separator Full Complement

High Rigidity Type Crossed Roller Bearings

CRBHV

Open type CRBHV … A

Sealed type CRBHV … AUU


CRBFV

Open type CRBFV … A

Sealed type CRBFV … AUU


CRBC, CRB

Open type CRBC CRB

Sealed type CRBC…UU CRB… UU


CRBTOpen type CRBT … A


CRBTFOpen type CRBTF … A


CRBS

Open type CRBS CRBS…V

Sealed type CRBS …AUU CRBS…VUU



Identification numberThe identification number of Crossed Roller Bearings consists of a model code, dimensions, any supple-mental codes and a classification symbol. Some examples are shown below.


codeClassification

symbolDimensions

150CRBHV C1A25 UU

30CRBT C1A5

C1 P6UU

Example 1

Example 2

Example 3

115 DCRBFV C1A28 UUExample 5

150CRBS C1A8 UUExample 4

150CRBC 25

RP6

P6

DimensionThe dimension indicates the bore diameter of the bearing. (unit : mm)The dimension indicates the bearing width. (unit : mm)

Supplemental code - 1(1)TNo symbolD

Supplemental code - 2No symbolUUU

Supplemental code - 3T1 : T1 clearanceC1 : C1 clearanceC2 : C2 clearanceNo symbol : Normal clearance

With female threaded mounting holes on the inner ringWith counter-bored mounting holes on both inner ring and outer ring in the same direction.With counter-bored mounting holes on both inner ring and outer ring in the opposite direction.

Open typeSealed typeOne side sealed type

For application,please see table 2.

For application,please see table 3.

Note(1)　Applicable to Mounting Holed Type Crossed Roller Bearings. Note that with female threaded mounting holes on the inner ring (T) is only applicable for Mounting Holed Type Super Slim Crossed Roller Bearings.

Classification symbolNo symbolP6P5P4P2RP6RP5RP4RP2

Accuracy class 0Accuracy class 6Accuracy class 5Accuracy class 4Accuracy class 2Rotational accuracy class 6 Rotational accuracy class 5 Rotational accuracy class 4 Rotational accuracy class 2

For application, please see table 4.

Rotational accuracy class···classes specifying accuracy standards for only rotationalaccuracy (radial runout, axial runout).

Model codeCRBHV …ACRBFV …ACRBCCRBCRBT …ACRBTF …ACRBSCRBS …ACRBS …V

High Rigidity Type Crossed Roller Bearings V (With Separator)Mounting Holed Type High Rigidity Crossed Roller Bearings V (With Separator)Standard Type Crossed Roller Bearings (With Cage)Standard Type Crossed Roller Bearings (Full complement)Super Slim Type Crossed Roller Bearings (With Separator)Mounting Holed Type Super Slim Crossed Roller Bearings (With Separator)Slim Type Crossed Roller Bearings (With Cage)Slim Type Crossed Roller Bearings (With Separator)Slim Type Crossed Roller Bearings (Full complement)


Internal Structures and ShapesVarious types are lined up in Crossed Roller Bearing series, including the type with cage, the type with sep-arator, open type, sealed type, etc..

Roller guide methodCrossed Roller Bearings include the type with cage, type with separator and full complement type. The type with cage and the type with separator have a small coefficient of friction and are suitable for com-

Seal structureCrossed Roller Bearings include the open type and sealed type. The sealed type bearing incorporates seals made of special synthetic rubber that have

《Open type》《Sealed type》

《Full complement》《With Separator》《With Cage》

excellent sealing performance against dust and dirt penetration and grease leakage. However, excess grease may be discharged during initial operations.

paratively high speed rotations, while the full comple-ment type is suitable for heavy load applications at low speed rotations.

Outer ring

Outer ring separation prevention bolt

Inner ring

Roller

Inner ring

Roller Outer ring

Separator

Outer ring


Inner ring

Roller

Cage

Seal

Outer ring


Inner ring

Roller

Inner ring

Roller Outer ring

Separator

Outer ring


Inner ring

Roller

Cage

Seal



Dynamic Equivalent LoadThe direction of basic dynamic load rating of Crossed Roller Bearing is the radial direction. When a load in any direction other than the direction of basic dynamic load rating or a complex load is applied, calculate the dynamic equivalent load to calculate the rating life.　　　

Pr＝X Fr ＋ 2M

＋YFa …………………(1)　　　　　　　　 Dpw

　　where, 　 Pr : Dynamic equivalent radial load,　 N 　　　　　　 Fr : Radial load, 　 N 　　　　　　 Fa : Axial load, 　N 　　　　　　 M : Moment, 　N-mm　　　　　　Dpw : Pitch circle diameter of roller set,　mm　　　　　　　　　　　　　　

Dpw≒ d＋ D

　　　　　　　　　　　　　　　 2　　　　　　 X : Radial load factor (Refer to Table 5.)　　　　　　　Y : Axial load factor (Refer to Table 5.)

Fig. 1 Load direction

Static Equivalent LoadThe direction of basic static load rating of Crossed Roller Bearing is the radial direction. When a load in any direction other than the direction of basic static load rating or a complex load is applied, calculate the static equivalent load to calculate the static safety fac-tor.　　　

P0r＝ Fr ＋ 2M

＋ 0.44 Fa …………………(2)　　　　　　　Dpw

　　where,　 P0r : Static equivalent radial load, 　N 　　　　　　 Fr : Radial load, 　N 　　　　　　 Fa : Axial load, 　N 　　　　　　 M : Moment, 　N -mm　　　　　　Dpw : Pitch circle diameter of roller set, mm　　　　　　　　　　　　　　　

Dpw≒ d＋ D

　　　　　　　　　　　　　　　 2　　　　　　

（　　）

（　　）

（　　）

Table 5 Radial load factor and axial load factor

Conditions

　　　　　 Fa

Fr ＋ 2M/Dpw ≦ 1.5 1 0.45

0.67 0.67　　　　　 Fa　

Fr ＋ 2M/Dpw ＞ 1.5

X Y

Table 2 Seal Specification

Table 3 Clearance Specification

Table 4 Accuracy Class

2.5 2.5 2.5 2.5 2.5 5 5 7 8 101215

3 4 4 5 6 6 8 1012141620

4 5 5 6 8 8 101315182025

8 1010131818202530354050

131520253030405060657080

2.5 2.5 2.5 2.5 2.5 5 5 7 8 101215

3 4 4 5 6 6 8 1012141620

4 5 5 6 8 8 101315182025

8 1010131818202530354050

131520253030405060657080

Low

−100−100−100−100−120−120−120−150−200−200−200−200

High

0 0 0 0 0 0 0 0 0 0 0 0

Low

− 75 − 75 − 75 − 75 −100−100−100−120−150−150−150−150

High

0 0 0 0 0 0 0 0 0 0 0 0

Low

− 5− 6− 7− 8−10 −10 −12−−−−−

High

0 0 0 0 0 0 0−−−−−

Low

− 6− 8− 9−10 −13 −13 −15 −18 −23−−−

High

0 0 0 0 0 0 0 0 0−−−

Low

− 8−10 −12 −15 −18 −18 −22 −25 −30 −35 −40−

High

0 0 0 0 0 0 0 0 0 0 0−

Low

−10 −12 −15 −20 −25 −25 −30 −35 −40 −45 −50 −75

High

0 0 0 0 0 0 0 0 0 0 0 0

Over

dNominal bore

diameter

mm

∆dmp（1）Single plane mean bore dia. deviation

∆BsDeviation of

a single inner ring

width

∆Cs（2）Deviation of

a single outer ring

width

KiaRadial run-out of assembled

bearing inner ring

SiaAssembled bearing inner ring

face run-out with raceway

18 30 50 80120 150 180 250 315 400 500 630

Incl.

30 50 80120 150 180 250 315 400 500 630 800

Table 6 Tolerances and allowable values of inner rings and tolerances of outer ring width

Class 0RP6-2

P6 P5 P4

Notes(1)　 For accuracy class P2 and other classes without a numerical description, the highest grade numerical value among the lower accura-cy classes in the same nominal bore diameter range is applied.

(2)　 For High Rigidity Type Crossed Roller Bearings V, the tolerances for deviation of a single inner ring width are applicable to those of a single outer ring width.

Remark　 The accuracy specified in this table is not applicable to (Mounting Holed Type) Super Slim Crossed Roller Bearings, Slim Type Crossed Roller Bearings, and Mounting Holed Type High Rigidity Crossed Roller Bearings V.

unit: μ m

KeaRadial run-out of assembled bearing

outer ring

SeaAssembled bearing outer ring face

run-out with raceway

∆Dmp（1）Single plane mean outside dia. deviation

30

50

80

120

150

180

250

315

400

500

630

800

1000

Over

DNominal outside

diametermm

50

80

120

150

180

250

315

400

500

630

800

1000

1030

Incl.

0

0

0

0

0

0

0

0

0

0

0

0

0

High

Class 0RP6-2

P6 P5 P4

− 11

− 13

− 15

− 18

− 25

− 30

− 35

− 40

− 45

− 50

− 75

−100

−125

Low

0

0

0

0

0

0

0

0

0

0

0

0

−

High

− 9

−11

−13

−15

−18

−20

−25

−28

−33

−38

−45

−60

−

Low

0

0

0

0

0

0

0

0

0

0

−−−

High

− 7

− 9

−10

−11

−13

−15

−18

−20

−23

−28

−−−

Low

0

0

0

0

0

0

0

−−−−−−

High

− 6

− 7

− 8

− 9

−10

−11

−13

−−−−−−

Low

20

25

35

40

45

50

60

70

80

100

120

120

120

Class 0

10

13

18

20

23

25

30

35

40

50

60

75

75

P6RP6

7

8

10

11

13

15

18

20

23

25

30

35

35

P5 RP5

5

5

6

7

8

10

11

−−−−−−

P4（2）RP4

2.5

4

5

5

5

7

7

−−−−−−

P2（2）RP2

20

25

35

40

45

50

60

70

80

100

120

120

120

Class 0

10

13

18

20

23

25

30

35

40

50

60

75

75

P6RP6

7

8

10

11

13

15

18

20

23

25

30

35

35

P5 RP5

5

5

6

7

8

10

11

−−−−−−

P4（2）RP4

2.5

4

5

5

5

7

7

−−−−−−

P2（2）RP2

Table 7 Tolerances and allowable values of outer ring

Notes(1)　 For accuracy class P2 and other classes without a numerical description, the highest grade numerical value among the lower accura-cy classes in the same nominal bore diameter range is applied.

(2)　 P4 and P2 apply to High Rigidity Type Crossed Roller Bearings V. For Standard Type Crossed Roller Bearings, the tolerance values for P5 are applicable to P4 and P2.

Remark　 The accuracy specified in this table is not applicable to (Mounting Holed Type) Super Slim Crossed Roller Bearings, Slim Type Crossed Roller Bearings, and Mounting Holed Type High Rigidity Crossed Roller Bearings V.

unit: μ m

AccuracyThe accuracy of Crossed Roller Bearings, Mounting Holed Type Super Slim Crossed Roller Bearings, Slim Type Crossed Roller Bearings and Mounting Holed

Type High Rigidity Crossed Roller Bearings V is shown below in Table 6 - 10.2.Bearings with special accuracy are also options. Please consult IKO.

P6RP6

Class 0

P2RP2

P4RP4

P5RP5

P6RP6

Class 0

P2RP2

P4RP4

P5RP5

Model codeNo

Symbol UU U

CRBHV … A 〇〇 −CRBFV … A 〇〇 −CRBC 〇〇〇CRB 〇〇〇CRBT … A 〇 − −CRBTF … A 〇 − −CRBS 〇 − −CRBS … A − 〇〇CRBS … V 〇〇〇

Model code T1 C1 C2No

Symbol

CRBHV … A 〇〇〇 −CRBFV … A 〇〇〇 −CRBC 〇〇〇 −CRB 〇〇〇 −CRBT … A − 〇 − −CRBTF … A − 〇 − −CRBS 〇〇 − 〇CRBS … A 〇〇 − 〇CRBS … V 〇〇 − 〇

Model codeNo

SymbolP6

RP6P5

RP5P4

RP4P2

RP2

CRBHV … A 〇〇〇〇〇CRBFV … A 〇〇〇〇〇CRBC 〇〇〇〇〇CRB 〇〇〇〇〇CRBT … A 〇 − − − −CRBTF … A 〇 − − − −CRBS 〇 − − − −CRBS … A 〇 − − − −CRBS … V 〇 − − − −



unit: μ m

13131515151520202525252525303030

13131515151520202525252525303030

− 127− 127− 127− 127− 127− 127− 127− 127− 127− 127− 127− 127− 127− 127− 127− 127

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

− 13 − 13 − 15 − 15 − 15 − 15 − 20 − 20 − 25 − 25 − 25 − 25 − 30 − 30 − 30 − 30

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

− 15 − 15 − 15 − 20 − 20 − 20 − 20 − 25 − 25 − 25 − 25 − 25 − 25 − 30 − 30 − 30

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

50 60 70 80 90100 110 120 130 140 150 160 170 180 190 200

Kia and Sia Radial and axial run-out

of assembled bearing inner ring

∆Bs and ∆CsDeviations of a single inner ring width

and outer ring width

∆DmpSingle plane mean outside dia.

deviation


deviation

dNominal bore

diameter

mm

Kea and Sea Radial and axial run-out

of assembled bearing outer ring

Table 9 Tolerances and allowable values of Slim Type Crossed Roller Bearings

High Low High Low High Low

∆dmpSingle plane mean bore dia. deviation

Class 0RP6-2

High Low

P6

High Low

P5 P4, P2

High Low High Low

Class 0

P6RP6

P5 RP5

P4RP4

P2RP2

Class 0

P6RP6

P5 RP5

P4RP4

P2RP2

KiaRadial run-out of assembled

bearing inner ring

SiaAssembled bearing inner ring


dNominal bore

diametermm

Over Incl.

∆BsDeviation of

a single inner ring width

High Low

−203035506580

100

203035506580

100120

00000000

− 10− 10− 12− 12− 15− 15− 20− 20

Table 10.1 Tolerances and allowable values of inner rings of Mounting Holed Type High Rigidity Crossed Roller Bearings V unit: μ m

00000000

− 8− 8− 10− 10− 12− 12− 15− 15

00000000

− 6− 6− 8− 8− 9− 9− 10− 10

00000000

− 5− 5− 6− 6− 7− 7− 8− 8

00000000

− 75− 75− 75− 75− 75− 75− 75− 75

1315152020252530

810101010131318

45555668

34444556

2.52.52.52.52.52.52.52.5

1315152020252530

810101010131318

45555668

34444556

2.52.52.52.52.52.52.52.5


deviation

High Low

dNominal bore

diameter

mm

101520304050

000000

− 8( − 8)− 8− 10( − 10)− 10( − 10)− 12( − 12)− 12

Table 8 Tolerances and allowable values of Mounting Holed Type Super Slim Crossed Roller Bearings unit: μ m∆Dmp

Single plane mean outside dia. deviation

High Low

000000

− 9( − 11)− 9− 11( − 13)− 11( − 13)− 13( − 13)− 13

∆Bs and ∆CsDeviations of a single inner ring width

and outer ring width

High Low

000000

− 75− 75− 75− 75− 75− 75

Kia and Sia Radial and axial run-out

of assembled bearing inner ring

10(13)1013(13)13(15)15(15)15

Kea and Sea Radial and axial run-out

of assembled bearing outer ring

15(20)1520(20)20(25)25(25)25


Class 0RP6-2

High Low

P6

High Low

P5 P4, P2

High Low High Low

Class 0

P6RP6

P5 RP5

P4RP4

P2RP2

Class 0

P6RP6

P5 RP5

P4RP4

P2RP2

KeaRadial run-out of assembled

bearing outer ring

SeaAssembled bearing outer ring


DNominal outside

diametermm

Over Incl.

∆CsDeviation of

a single outer ring width

High Low

50608095

120140150165180210

608095

120140150165180210240

0000000000

− 13− 13− 15− 15− 18− 18− 25− 25− 30− 30

Table 10.2 Tolerances and allowable values of outer rings of Mounting Holed Type High Rigidity Crossed Roller Bearings V unit: μ m

0000000000

− 11− 11− 13− 13− 15− 15− 18− 18− 20− 20

0000000000

− 9− 9− 10− 10− 11− 11− 13− 13− 15− 15

0000000000

− 7− 7− 8− 8− 9− 9− 10− 10− 11− 11

0000000000

− 75− 75− 75− 75− 75− 75− 75− 75− 75− 75

20252535354040454550

10131318182020232325

7 8 810101111131315

555667788

10

2.5445555557

20252535354040454550

10131318182020232325

7 8 810101111131315

555667788

10

2.5445555557

ClearanceThe radial internal clearances of Crossed Roller Bearings, Mounting Holed Type Super Slim Crossed Roller Bearings, Slim Type Crossed Roller Bearings and Mounting Holed Type High Rigidity Crossed Roller Bearings V are shown below in Table 11.1-11.4.

− 30 40 50 65 80100 120 140 160 200 250 315 400 500 630 710


mm


Table 11.1 Radial internal clearances

Over

30 40 50 65 80100 120 140 160 200 250 315 400 500 630 710 800

− 10 − 10 − 10 − 10 − 10 − 10 − 15 − 15 − 15 − 15 − 20 − 20 − 25 − 30 − 30 − 30 − 40

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

1010101015151520202025253040506070

1010101015151520202025253040506070

20 20 25 25 30 35 35 45 50 50 60 60 70 85100 120 140

Incl. Min.

T1 C1 C2

Max. Min. Max. Min. Max.

Remark　 This table is not applicable to Mounting Holed Type Super Slim Crossed Roller Bearings, Slim Type Crossed Roller Bearings and Mounting Holed Type High Rigidity Crossed Roller Bearings V.

unit: μ m

56565666666666767676767676868686


mm

Table 11.3 Radial internal clearances of Slim Type Crossed Roller Bearings

Max.

30303041414141515151515151616161

Min.

15151515151515151515152020202020

Max.

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Min.

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Max.

− 8− 8− 8− 8− 8− 8− 8− 8− 8− 8− 8− 10 − 10 − 10 − 10 − 10

Min.

T1


C1 Normal

50 60 70 80 90100 110 120 130 140 150 160 170 180 190 200

unit: μ m


C1

Min.


of bearingmm

101520304050

000000

Max.

151515151515

Table 11.2 Radial internal clearances for Mounting Holed Type Super Slim Crossed Roller Bearings unit: μ m

Remark　 The values in ( ) represent that of Mounting Holed Type Super Slim Crossed Roller Bearings.




Table 12.1 Recommended fits for Crossed Roller Bearings under normal load

C1 clearance

C2 clearance

Tolerance class

h5

j5

Shaft Housing bore Shaft Housing bore

Inner ring rotating load Outer ring rotating load

H7

H7

g5

g5

J7（1）J7（1）

Note(1)　It is recommended that a slight interference fit adjusted to the actual measured dimensions of the bearing is used.


mm

Table 12.2 Recommended fits for Slim Type Crossed Roller Bearings with normal clearances (Dimensional tolerances of shaft and housing bore)

50 60 70 80 90100 110 120 130 140 150 160 170 180 190 200

High

Shaft

Inner ring rotating load Outer ring rotating load

Housing bore Shaft Housing bore

＋ 15＋ 15＋ 15＋ 20＋ 20＋ 20＋ 20＋ 25＋ 25＋ 25＋ 25＋ 25＋ 25＋ 30＋ 30＋ 30

Low

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

High

＋ 13＋ 13＋ 15＋ 15＋ 15＋ 15＋ 20＋ 20＋ 25＋ 25＋ 25＋ 25＋ 30＋ 30＋ 30＋ 30

Low

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

High

− 15 − 15 − 15 − 20 − 20 − 20 − 20 − 25 − 25 − 25 − 25 − 25 − 25 − 30 − 30 − 30

Low

− 30 − 30 − 30 − 40 − 40 − 40 − 40 − 50 − 50 − 50 − 50 − 50 − 50 − 60 − 60 − 60

High

− 13 − 13 − 15 − 15 − 15 − 15 − 20 − 20 − 25 − 25 − 25 − 25 − 30 − 30 − 30 − 30

Low

− 25 − 25 − 30 − 30 − 30 − 30 − 40 − 40 − 50 − 50 − 50 − 50 − 60 − 60 − 60 − 60

unit: μ m

FitThe standard fits of Crossed Roller Bearings are shown in Table 12.1, and recommended fits for Slim Type Crossed Roller Bearings with normal clearances are shown in Table 12.2. For Super Slim Type Crossed Roller Bearings, it is recommended to use a slight inter-ference fit adjusted to the actual measured dimensions. For large bearings, fit based on the actual measured dimensions of the bearings is recommended, and fit allowance should be chosen as small as possible in accordance with the tolerance class given in Table 12.1. When complex loads or shock loads are applied or when high rotational accuracy and rigidity of the bearing are required, it is recommended to use a slight interference fit adjusted to the actual measured dimen-sions for both inner and outer rings.For the interference fit, the radial internal clearance after the fit decreases by approximately 70% to 90% of the interference amount. To avoid excessive pre-load due to fit, it is recommended to use a slight inter-ference fit adjusted to the actual measured dimen-sions for both T1 and C1 clearances.

2020253035354550


mmOver Incl.

Table 11.4 Radial internal clearances of Mounting Holed Type High Rigidity Crossed Roller Bearings V

Max.

1010101515152020

Min.

1010101515152020

Max.

00000000

Min.

00000000

Max.

− 10− 10− 10− 10− 10− 15− 15− 15

Min.

T1


C1 C2

− 20 25 35 65 80 95110

20 25 35 65 80 95110125

unit: μ m

Allowable rotational speedAllowable rotational speeds of Crossed Roller Bearings are affected by mounting and operating con-ditions. The values in general operation are shown in Table 13.

Table 13 dmn values（1）of Crossed Roller BearingsLubricant

Type

With cage orwith separator

Full complement

Open type

Sealed type

Open type

Sealed type

75 000

60 000

50 000

40 000

150 000

−

75 000

−

Grease Oil

Note(1)　・dmn value＝ dm× n　　　　　　where, 　dm : Mean value of bearing bore and outside diameters, mm　　　　　　　　　 n : Number of rotations per minute, min-1

Rotational torqueRotational torque of IKO Crossed Roller Bearings are lower than that of plain bearings and the difference between the static torque and the dynamic (kinetic) torque is small. Therefore, these bearings minimize power consumption and operating temperature rise of machinery and increase the overall efficiency of machines.The rotational torque is affected by many factors, but

the following equations can be used expediently. DpwT ＝ μP0r——— 2 where, T ： Rotational torque,　N・mm μ ： Friction coefficient (Approx. 0.010) P0r ： Static equivalent radial load,　N Dpw ： Pitch circle diameter,　mm

d ＋ DDpw ≒———— 2

LubricationThese bearings are generally lubricated with grease. Grease is supplied through the clearance between the inner ring and the outer ring.Grease specification is shown in Table 14, ALVANIA GREASE EP2 (Shell Lubricants Japan K.K.) is prepacked as the lubricating grease.For bearings without prepacked grease, supply grease or oil for use. Operating without grease or oil will increase the wear of the rolling contact surfaces and cause a short bearing life.

Table 14 Bearings with prepacked grease：With prepacked grease 　　×：Without prepacked grease

When using a special grease, carefully examine the grease properties and contents such as base oil vis-cosity and extreme pressure additives. In this case, please contact IKO.

Oil HoleFor Crossed Roller Bearings, oil holes and oil grooves can be provided on bearing rings if requested. Not applicable to the Super Slim Type (Mounting Holed Type). When an oil hole is required on the outer ring, attach "-OH" before the clearance symbol in the identification number. When an oil hole and an oil groove are required on the outer ring, attach "-OG" at the same place in the identification number. For an oil hole on the inner ring, attach "/OH", and for an oil hole and an oil groove on the inner ring, attach "/OG", at the same place in the identification number. High Rigidity Type Crossed Roller Bearings V and Mounting Holed Type High Rigidity Type Crossed Roller Bearings V have an oil groove and two oil holes on the outer ring as standard. Table 15 shows availability of oil holes for each bearing type.

Table 15 Oil holes

Notes(1)　 CRBHV … A and CRBFV … A are provided with an oil groove and two oil holes on the outer ring.

Remark　 n denotes the number of oil holes not exceeding 4. For one oil hole, number is not indicated.When preparing multiple oil holes, please contact IKO.

（）

Model code

Seal specification

Open type(No symbol)

Sealed type

(UU)

One sidesealed type

(U)

CRBHV … A × 〇 −CRBFV … A × 〇 −CRBC × 〇 ×

CRB × 〇 ×

CRBT … A 〇 − −CRBTF … A 〇 − −CRBS × − −CRBS … A − 〇 ×

CRBS … V × 〇 ×

Bearing typeOil hole code

/nOH /nOG -nOH -nOG

CRBHV … A 〇〇 − −(1)

CRBFV … A − − − −(1)

CRBC 〇〇〇〇CRB 〇〇〇〇CRBT … A − − − −CRBTF … A − − − −CRBS 〇 − 〇 −CRBS … A 〇 − 〇 −CRBS … V 〇 − 〇 −


J13 J14

When the rigidity of the mounting parts is not suffi-cient, stress concentration will occur at the contact area between the rollers and raceways, and the bear-ing performance will be deteriorated significantly.Therefore, it is necessary to carefully examine the rigidity of housing and the strength of fixing bolts when a large moment will be applied.The shoulder height diameters (da and Da) that are related to mounting should certainly satisfy the values shown in the dimension tables. When these dimen-sions are incorrect, deformations of inner and outer rings will occur and the bearing performance will be deteriorated remarkably.

Fig. 2 Mounting example

1 The inner and outer rings should be securely fixed in the axial direction by using fixing plates, etc. Recommended thickness of the fixing plate is 1/2 or more of the bearing width B. The dimensions in the axial direction of the housing bore and the fixing

Mounting

2. Mounting Holed Type High Rigidity Crossed Roller Bearings V, Mounting Holed Type Super Slim Crossed Roller Bearings

1. Other than Mounting Holed Type Crossed Roller Bearings V

1 Mounting Holed Type High Rigidity Crossed Roller Bearings V, Mounting Holed Type Super Slim Crossed Roller Bearings can be mounted directly to the mount-ing surface by fixing bolts. (See Fig. 3, Fig. 4)2 If large number of radial load and/or moment is expected, it is recommended to prepare flange part. (See Fig.5)3 Mounting Holed Type High Rigidity Crossed Roller Bearings V, Mounting Holed Type Super Slim Crossed Roller Bearings have a plug for hole for inserting cylin-drical rollers. When mounting the bearings, locate the plug at a position that is not included in the maximum loading zone. The plug location can be found by the pin pressed at the side of the outer ring.

Operating Temperature RangeThe operating temperature range for Crossed Roller Bearings is − 20〜＋ 120 . However, the maxi-mum allowable temperature for types with separator and with seal is＋ 110 , and＋ 100 when they are continuously operated.

Example 1　 When the inner ring has 4 oil holes

　　　CRBC 10020 / 4OH C1 　　　　　　　　　　　　　　　　　4 Oil holes 　　　　　　　　　　　　　　　　　In inner ring

Example 2　 When the outer ring has a single oil hole

　　　CRBC 10020 - OH C1

　　　　　　　　　　　　　　　　　1 Oil hole 　　　　　　　　　　　　　　　　　In outer ring

plates should be determined to get a secure fixing while considering the dimension of bearing width which is given a minus tolerance. (See Fig.2)2 The depth of the housing bore is recommended to be equal to or larger than the bearing width.3 Separation prevention bolts for the outer ring of Standard Type Crossed Roller Bearings are provided to prevent separation of two halves of the outer ring during transportation or mounting. When mounting, they should be loosened slightly.4 High Rigidity Type Crossed Roller Bearings V, Super Slim Type Crossed Roller Bearings and Slim Type Crossed Roller Bearings have a plug for hole for inserting rollers. When mounting the bearings, locate the plug at a position that is not included in the maxi-mum loading zone. The plug location can be found by the pin pressed at the side of the outer ring.

Tightening torque of mounting boltsThe standard tightening torque values for Mounting Holed Type High Rigidity Crossed Roller Bearings V, Mounting Holed Type Super Slim Crossed Roller Bearings mounting bolts are shown in Table 16. When machines or equipment are subjected to severe vibra-tion, shock, large fluctuating load, or moment load, the bolts should be tightened with a torque 1.2 to 1.5 times higher than the standard torque values shown. If the mating member material is cast iron or alumi-num, reduce the tightening torque depending on the strength characteristics of the mating member materi-al. Please do not tighten with too much torque as abnor-mal frictional torque or short life may occur.

Double Row Angular Contact Roller BearingWe manufacture Double Row Angular Contact Roller Bearings to order. If needed, please contact IKO. Double Row Angular Contact Roller Bearings have a large number of cylindrical rollers with a large contact area with a raceway and an excellent load capability, between the inner and outer rings arranged in a dou-ble row of raceways. This underpins even higher rigidi-ty and lower torque than High Rigidity Type Crossed Roller Bearings V. The mounting holes in both inner and outer rings facil-itate installation to your machines and equipment. Further, the integrated structure (non split) construct-ed in both inner and outer rings can avoid installation errors, yielding extra-high-rigidity and high-accuracy guiding performance without being affected by other peripheral structures such as housing or pressure plate.For lubrication, use the two oil holes on the outer ring outer surface shown in Fig. 6.

Above values are for Carbon steel bolt (Strength division 12.9)

Table 16 Tightening torque of mounting bolts

Bolt size Tighteningtorque

N・m

M2.5 × 0.4

M3 × 0.5

M4 × 0.7

M5 × 0.8

M8 × 1.25

0.58

1.7

4.0

7.9

32 Structure of Double-acting Angular Roller Bearing

Outer ring

Separator

Cylindrical roller

Inner ring

B

D d

Rc1/8

A-O-A'

A

A'

OPCD

1

PCD

2

(Oil hole)

Fig. 7 Manufacturing example

Table 17 Example of manufacturing dimensions



C0N


CN

160

210

350

d D B rmin PCD1 PCD2

295

380

540

35

40

50

2

2.5

2.5

184

240

385

270

350

505

167 000

313 000

725 000

60 300

108 000

235 000

Inject greaseInject grease

Grease

Inject grease 1 Inject grease 2

Grease Grease

Fig. 3 Example of direct mounting to the mating surface of Mounting Holed Type High Rigidity Crossed Roller Bearings V

Fig. 4 Example of direct mounting to the mating surface of Mounting Holed Type Super Slim Crossed Roller Bearings

Fig. 5 Example of mounting to the housing of Mounting Holed Type High Rigidity Crossed Roller Bearings V

Fig. 6 Grease


1N=0.102kgf=0.2248lbs.1mm=0.03937inch J161N=0.102kgf=0.2248lbs.1mm=0.03937inchJ15 J16

CRBHV … A

High Rigidity Type Crossed Roller Bearings V Open Type/With Separator


Sealed Type/With Separator

CRBHV … AUU

CROSSED ROLLER BEARINGS

Shaft dia.

mm

Mass (Ref.)

kg


d D B rmin(1)

Mounting dimensions mm

d a Da

20

25

30

35

40

45

50

60

70

80

90

100

110

120

130

140

150

200

250

300

CRBHV 208 A

CRBHV 258 A

0.04

0.05

0.12

0.13

0.15

0.16

0.29

0.33

0.38

0.74

0.81

1.45

1.56

2.62

2.82

2.96

3.16

4.00

4.97

5.29

20

25

30

35

40

45

50

60

70

80

90

100

110

120

130

140

150

200

250

300

36

41

55

60

65

70

80

90

100

120

130

150

160

180

190

200

210

260

310

360

8

8

10

10

10

10

13

13

13

16

16

20

20

25

25

25

25

25

25

25

0.3

0.3

0.3

0.3

0.3

0.3

0.6

0.6

0.6

0.6

0.6

0.6

0.6

1

1

1

1

1

1.5

1.5

24

29

36.5

41.5

46.5

51.5

56

66

76

88

98

110

120

132

142

152

162

212

262

312

31

36

48.5

53.5

58.5

63.5

74

84

94

112

122

140

150

168

178

188

198

248

298

348


Sealed Type

CRBHV 208 A UU

CRBHV 258 A UU


C

N


C0

N

2 910

3 120

7 600

7 900

8 610

8 860

17 300

18 800

20 100

32 100

33 100

50 900

52 400

73 400

75 900

81 900

84 300

92 300

102 000

112 000

2 430

2 810

8 370

9 130

10 600

11 300

20 900

24 300

27 700

43 400

46 800

72 200

77 400

108 000

115 000

130 000

138 000

169 000

207 000

245 000

Open Type


CRBHV 3010 A

CRBHV 3510 A

CRBHV 4010 A

CRBHV 4510 A

CRBHV 5013 A

CRBHV 6013 A

CRBHV 7013 A

CRBHV 8016 A

CRBHV 9016 A

CRBHV 10020 A

CRBHV 11020 A

CRBHV 12025 A

CRBHV 13025 A

CRBHV 14025 A

CRBHV 15025 A

CRBHV 20025 A

CRBHV 25025 ACRBH 30025 A

CRBHV 3010 A UU

CRBHV 3510 A UU

CRBHV 4010 A UU

CRBHV 4510 A UU

CRBHV 5013 A UU

CRBHV 6013 A UU

CRBHV 7013 A UU

CRBHV 8016 A UU

CRBHV 9016 A UU

CRBHV 10020 A UU

CRBHV 11020 A UU

CRBHV 12025 A UU

CRBHV 13025 A UU

CRBHV 14025 A UU

CRBHV 15025 A UU

CRBHV 20025 A UU

CRBHV 25025 A UUCRBH 30025 A UU

Note(1)　　 Minimum allowable single value of chamfer dimension rRemarks1. The outer ring has an oil groove and two oil holes. 2. No grease is prepacked for Open Type. Perform proper lubrication. Grease is prepacked for Sealed Type. 3. If one side sealed type are needed, please contact IKO.





Open Type/With Separator

Sealed Type/With Separator

Shaft dia. 10− 115mmCRBFV … AT CRBFV … ATUU CRBFV … A CRBFV … AUU CRBFV … AD CRBFV … ADUU

Note(1)　　 Minimum allowable single value of chamfer diameter r1 and r2.Remarks1. The outer ring has an oil groove and two oil holes. 2. No grease is prepacked for Open Type. Perform proper lubrication. Grease is prepacked for Sealed Type. 3. If one side sealed type are needed, please contact IKO.

Shaft dia.

mm


Mass(Ref.)

kg d D B


Open Type Sealed Type

10 CRBFV 108 AT CRBFV 108 AT UU 0.12 10 52 8 0.3 0.3





80

CRBFV 8022 AT CRBFV 8022 AT UU 2.63

80 165 22 0.6 1CRBFV 8022 A CRBFV 8022 A UU2.60

CRBFV 8022 AD CRBFV 8022 AD UU

90


90 210 25 1.5 1.5CRBFV 9025 A CRBFV 9025 A UU4.67


115


115 240 28 1.5 1.5CRBFV 11528 A CRBFV 11528 A UU6.63


139


C

N

Mounting holes mm Mountingdimensions

mm

97

112

da Da

16

28

35

45

65

42

57

67

83

105

2 910

7 600

8 610

17 300

20 100

2 430

8 370

10 600

20 900

27 700

6-φ3.4 throughφ6.5 counter bore depth 3.3



8-φ4.5 throughφ8 counter bore depth 4.4


148

187

217

51 100

73 400

72 000

108 000

24

36.5

46.5

56

76

107

132

162

31

48.5

58.5

74

94

137

168

198 84 300 138 000


12-φ9 throughφ14 counter bore depth 12

12-φ9 throughφ14 counter bore depth 13.5

Inner ring Outer ring

PCD1 PCD2Mounting holes Mounting holes


C0

N

12-M8 through

12-M8 through

10- φ 5.5 throughφ 9.5 counter boredepth 5.4

12- φ 9 throughφ 14 counter boredepth 12

12- φ 9 throughφ 14 counter boredepth 13.5

4-M3 through

6-M3 through

6-M3 through

8-M4 through

8-M5 through

10-M5 through

r1min(1)

r2min(1)

Mounting Holed Type High Rigidity Crossed Roller Bearing V



CROSSED ROLLER BEARINGSStandard Type Crossed Roller BearingsOpen Type/With Cage Open Type/Full Complement Type

Sealed Type/With Cage Sealed Type/Full Complement Type

Shaft dia. 30− 200mm CRBC CRBC … UU CRB CRB … UU

Shaft dia.

mm


d D B

Note(1)　　 Minimum allowable single value of chamfer dimension rRemarks1. No oil hole is provided. 2. No grease is prepacked for Open Type. Perform proper lubrication. Grease is prepacked for Sealed Type.

Identification numberWith Cage Full complement

Mass (Ref.)

kgOpen Type Sealed Type Open Type Sealed Type


CN


C0N

CRB

30

40

50

60

70

80

90

100

110

120

130

140

150

200

CRBC 3010

CRBC 4010

CRBC 5013

CRBC 6013

CRBC 7013

CRBC 8016

CRBC 9016

CRBC 10020

CRBC 11020

CRBC 12025

CRBC 13025

CRBC 14025

CRBC 15025CRBC 15030

CRBC 20025CRBC 20030CRBC 20035

CRBC 3010 UU

CRBC 4010 UU

CRBC 5013 UU

CRBC 6013 UU

CRBC 7013 UU

CRBC 8016 UU

CRBC 9016 UU

CRBC 10020 UU

CRBC 11020 UU

CRBC 12025 UU

CRBC 13025 UU

CRBC 14025 UU

CRBC 15025 UUCRBC 15030 UUCRBC 20025 UU

CRB 3010

CRB 4010

CRB 5013

CRB 6013

CRB 7013

CRB 8016

CRB 9016

CRB 10020

CRB 11020

CRB 12025

CRB 13025

CRB 14025

CRB 15025CRB 15030

CRB 20025CRB 20030CRB 20035

CRB 3010 UU

CRB 4010 UU

CRB 5013 UU

CRB 6013 UU

CRB 7013 UU

CRB 8016 UU

CRB 9016 UU

CRB 10020 UU

CRB 11020 UU

CRB 12025 UU

CRB 13025 UU

CRB 14025 UU

CRB 15025 UUCRB 15030 UU

CRB 20025 UU

0.12

0.15

0.29

0.33

0.38

0.74

0.81

1.45

1.56

2.62

2.82

2.96

3.165.30

4.006.709.58

30

40

50

60

70

80

90

100

110

120

130

140

150150

200200200

55

65

80

90

100

120

130

150

160

180

190

200

210230

260280295

10

10

13

13

13

16

16

20

20

25

25

25

2530

253035

5 290

5 980

14 200

15 400

17 000

24 300

25 900

39 400

41 200

59 900

61 000

64 100

65 00085 900

75 300133 000168 000

6 350

8 040

18 400

21 500

25 500

37 500

42 100

61 100

66 700

95 400

99 800

108 000

113 000144 000

148 000234 000282 000


CN


C0N

d a Darmin


CRBC

0.3

0.3

0.6

0.6

0.6

0.6

1

1

1

1.5

1.5

1.5

1.51.5

222

34

44

55

64

75

86

98

108

118

132

140

151

160166

208218221

44

54

71

81

91

107

118

134

144

164

172

183

192202

239262274

3 830

4 280

10 700

11 600

12 300

18 200

19 400

31 500

33 500

47 700

49 200

50 700

53 80069 200

60 200108 000137 000

4 130

5 140

12 600

14 600

16 700

25 500

28 600

45 100

50 700

70 500

74 800

79 200

87 700108 000

110 000178 000215 000

(1)



CROSSED ROLLER BEARINGSStandard Type Crossed Roller Bearings

Shaft dia. 250− 800mm CRBC 25025CRBC 30025

CRBC 25025UUCRBC 30025UU

Open Type/With Cage Open Type/Full Complement Type

Sealed Type/With Cage Sealed Type/Full Complement Type

CRBC CRBCRB 25025CRB 30025

CRB 25025UUCRB 30025UU

Shaft dia.

mm


d D B

Note(1)　　 Minimum allowable single value of chamfer dimension rRemarks1. No oil hole is provided. 2. No grease is prepacked for Open Type. Perform proper lubrication. Grease is prepacked for Sealed Type.


With Cage Full complement

Mass (Ref.)

kgOpen Type Sealed Type Open Type Sealed Type


CN


C0N

CRBBasic dynamic

load ratingCN


C0N

d a Darmin(1)


CRBC



CRBC 60040CRBC 60070CRBC 600120

CRBC 70045CRBC 70070CRBC 700150

CRBC 80070CRBC 800100


400

500

600

700

800

300

CRB 40035CRB 40040CRB 40070

CRB 50040CRB 50050CRB 50070

CRB 60040CRB 60070CRB 600120

CRB 70045CRB 70070CRB 700150

CRB 80070CRB 800100

CRB 30025CRB 30035CRB 30040

14.5 23.5 72.4

26.0 41.7 86.1

30.6 102 274

46.5 115 478

109 247

5.88 13.4 17.2

400400400

500500500

600600600

700700700

800800

300300300

480510580

600625680

700780870

815880

1 020

9501 030

360395405

354070

405070

4070

120

4570

150

70100

253540

2.52.52.5

2.52.52.5

333

333

44

2.52.52.5

250 4.97 8.10 14.8

250250250

310330355

253040

2.52.52.5

414423430

517531530

621630643

730731751

831840

310318321

457483532

573592633

676734817

785834953

907972

341372381

133 000222 000470 000

212 000247 000536 000

231 000591 000

1 250 000

250 000630 000

1 660 000

417 000936 000

73 800163 000194 000

300 000455 000811 000

497 000561 000

1 020 000

581 0001 230 0002 210 000

681 0001 390 0003 010 000

1 090 0002 040 000

162 000299 000351 000

165 000270 000576 000

259 000306 000653 000

287 000700 000

1 490 000

313 000766 000

1 980 000

513 0001 140 000

91 900205 000235 000

400 000590 000

1 060 000

648 000747 000

1 330 000

774 0001 540 0002 800 000

917 0001 810 0003 820 000

1 440 0002 640 000

217 000408 000451 000

259265271

290310330

67 200116 000179 000

136 000208 000299 000

83 900146 000215 000

183 000283 000382 000

CRBC 25025 UU

CRBC 30025 UU

CRB 25025 UU

CRB 30025 UU


CRB 25025CRB 25030CRB 25040



CRBT … A




Open Type/With Separator

Shaft dia.

mm


CN


C0N


d D B d a Darmin(1)


Note(1)　　 Minimum allowable single value of chamfer dimension r .Remarks1. No oil hole is provided. 2. Grease is prepacked.


g

10

15

20

3040

50

CRBT 105 A

CRBT 155 A

CRBT 205 A

CRBT 305 A

11.9

9.0

14.8

20.7

26.5

15

10

20

30

40

26

21

31

41

51

5

5

5

5

5

0.15

0.15

0.15

0.15

0.15

17.5

12.5

22.5

32.5

42.5

22

17

27

37

47

1 320

1 120

1 400

1 770

2 000

1 110

1 290

1 970

2 520CRBT 405 A32.3 50 61 5 0.15 52.5 57 2 280 3 200CRBT 505 A

811



CRBTF … A



Shaft dia 10− 40mm

Open type/With Separator

Note(1)　　 Minimum allowable single value of chamfer dimension r .Remarks1. No oil hole is provided. 2. Grease is prepacked.

D d

PCD

1

PCD

2

Brr

r

r

d aDa

Shaft dia.

mm



Mounting holes mm Mounting dimensions mm

Basic dynamic load ratingC

Basic static load ratingC0

g d D B (1)rmin

Inner ring Outer ring

PCD1 Mounting holes PCD a Mounting holes d a Da N N

10 CRBTF 105 AT 46 10 43 5 0.15 16 6-M2.5 through 356-φ2.9 throughφ5.5 counter bore depth 2.8

21.5 28 1 500 1 410

20 CRBTF 205 AT 66 20 53 5 0.15 26 6-M2.5 through 456-φ2.9 throughφ5. 5 counter bore depth 2.8

31.5 38 1 890 2 150


41.5 47.5 2 140 2 750


51.5 58 2 440 3 490



CROSSED ROLLER BEARINGSSlim Type Crossed Roller Bearings

Shaft dia. 50− 200mm CRBS

Open Type/With Cage Open Type/Full Complement Type

Sealed Type/With Separator Sealed Type/Full Complement Type

CRBS … AUU… VUU

CRBS … V

Shaft dia.

mm

Note(1)　　 Minimum allowable single value of chamfer dimension r(2)　　 No grease is prepacked. Perform proper lubrication.(3)　　 Grease is prepacked.

Remark No oil hole is provided.


g

With Cage With Separator

Open Type Sealed Type Open Type Sealed Type

Full complementBasic dynamic load rating

CN

Basic static load ratingC0N

6 930

7 600

8 190

8 790

9 310

9 850

10 300

10 900

11 200

11 700

12 100

26 900

27 800

28 600

29 300

30 000

9 800

11 700

13 600

15 500

17 400

19 300

21 200

23 000

24 600

26 800

28 700

58 200

61 600

65 200

68 600

72 200

50

60

70

80

90

100

110

120

130

140

150

160

170

180

190

200

CRBS 508

CRBS 608

CRBS 708

CRBS 808

CRBS 908

CRBS 1008

CRBS 1108

CRBS 1208

CRBS 1308

CRBS 1408

CRBS 1508

CRBS 16013

CRBS 17013

CRBS 18013

CRBS 19013

CRBS 20013

CRBS 508 V

CRBS 608 V

CRBS 708 V

CRBS 808 V

CRBS 908 V

CRBS 1008 V

CRBS 1108 V

CRBS 1208 V

CRBS 1308 V

CRBS 1408 V

CRBS 1508 V

CRBS 16013 V

CRBS 17013 V

CRBS 18013 V

CRBS 19013 V

CRBS 20013 V

84

94

108

122

135

152

163

184

199

205

220

620

675

710

740

780

CRBS 508 A UU

CRBS 608 A UU

CRBS 708 A UU

CRBS 808 A UU

CRBS 908 A UU

CRBS 1008 A UU

CRBS 1108 A UU

CRBS 1208 A UU

CRBS 1308 A UU

CRBS 1408 A UU

CRBS 1508 A UU

CRBS 16013 A UU

CRBS 17013 A UU

CRBS 18013 A UU

CRBS 19013 A UU

CRBS 20013 A UU

CRBS 508 V UU

CRBS 608 V UU

CRBS 708 V UU

CRBS 808 V UU

CRBS 908 V UU

CRBS 1008 V UU

CRBS 1108 V UU

CRBS 1208 V UU

CRBS 1308 V UU

CRBS 1408 V UU

CRBS 1508 V UU

CRBS 16013 V UU

CRBS 17013 V UU

CRBS 18013 V UU

CRBS 19013 V UU

CRBS 20013 V UU

Basic dynamic load ratingCN



d D B d a Darmin(1)


50

60

70

80

90

100

110

120

130

140

150

160

170

180

190

200

66

76

86

96

106

116

126

136

146

156

166

186

196

206

216

226

8

8

8

8

8

8

8

8

8

8

8

13

13

13

13

13

0.4

0.4

0.4

0.4

0.4

0.4

0.4

0.4

0.4

0.4

0.4

0.6

0.6

0.6

0.6

0.6

54

64

74

84

94

104

114

124

134

144

154

166

176

186

196

206

61

71

81

91

101

111

121

131

141

151

161

179

189

199

209

219

4 900

5 350

5 740

6 130

6 490

6 850

7 160

7 530

7 860

8 060

8 350

20 300

20 900

21 500

22 100

22 500

6 170

7 310

8 440

9 590

10 700

11 900

13 000

14 100

15 300

16 400

17 500

39 900

42 200

44 600

46 900

49 300

Basic dynamic load ratingCN


4 680

5 350

5 740

6 130

6 490

6 530

6 850

7 070

7 270

7 510

7 810

19 400

20 000

21 900

22 900

23 300

5 810

7 310

8 440

9 590

10 700

11 100

12 300

13 000

13 800

14 900

16 000

37 700

39 900

45 700

49 200

51 600

CRBS(2)With cage

CRBS…AUU(3)With Separator

CRBS…V(2)CRBS…VUU(3)

Full complement

K

K1 K2

Steel-on-steel Spherical Bushings

Maintenance-free Spherical Bushings

Structure and FeaturesIKO Spherical Bushings are self-aligning spherical plain bushings that have inner and outer rings with spherical sliding surfaces, and can take a large radial load and a bi-directional axial load at the same time. There are many types of Spherical Bushings, but they are basically divided into steel-on-steel types and maintenance-free types according to the kind of slid-ing surfaces.Steel-on-steel Spherical Bushings have inner and outer rings of high carbon chromium bearing steel, of which sliding surfaces are phosphate-treated and then dry-coated with molybdenum disulfide (MoS2). They can, therefore, operate with low torque, and have excellent wear resistance and large load capaci-ty. They are especially suitable for applications where there are alternate loads and shock loads. They have wide applications mainly in industrial and construction machinery.Maintenance-free Spherical Bushings consist of an outer ring which has a special PTFE liner reinforced with copper alloy meshes on the sliding surface, and a spherical inner ring of which sliding surface has a hard chromium plating. Creep deformation due to compressive load is small, and wear resistance is superior. Thus, they are maintenance-free and can be used for extended periods of time without re-lubri-cation. They are especially suitable in cases where fixed directional loads are applied and are used main-ly in food processing machines and construction machinery and in other applications in which the use of oil is undesirable or lubrication is not possible.

Structures of Spherical Bushings

Outer ring (MoS2 coating)

Inner ring(MoS2 coating)

Steel-on-steel type

Outer ring (MoS2 coating)

Inner ring (MoS2 coating)

Seal (Polyurethane)

Outer ring

Outer ring

Special PTFE liner (Reinforced with copper alloy meshes)

Inner ring(Chromium plating)

Inner ring(Chromium plating)

Seal(Synthetic resin)

Special PTFE liner(Reinforced with copper alloy meshes)

Steel-on-steel type



TypesSpherical Bushings are available in various types shown in Table 1.

Table 1 Type of bearingType

Series

Metric

Inch

SB

SB … A

GE … E，ES

GE … G，GS

SBB

−

−

GE … ES-2RS

GE … GS-2RS

SBB … -2RS

GE … EC

−

GE … EC-2RS

−

Maintenance-free

Without seals With seals

Steel-on-steel


K

K3 K41N=0.102kgf=0.2248lbs.1mm=0.03937inch

Steel-on-steel Spherical Bushings SB

These bushings have an outer ring split into halves. The split outer ring and the inner ring are held togeth-er by a snap ring placed in the groove around the outer periphery of the outer ring.

Steel-on-steel Spherical Bushings SB … A

These bushings have an outer ring split only at one position, and therefore, the outer and inner rings will not separate. Handling before mounting and mount-ing to the housing are simple. The boundary dimen-sions are the same as those of the SB type.Therefore, SB and SB … A types are dimensionally interchange-able, but the radial internal clearances of the SB … A type are smaller than those of the SB type.

Steel-on-steel Spherical Bushings GE … E，GE … ES

The dimension series of these types conform to ISO standards and they can be used internationally. The outer ring is split at one position. The GE … E and GE … ES types are available. These are classified by bushing size.The GE … ES type can be provided with seals, which are double-lip type polyurethane seals effective for prevention against grease leakage and dust penetra-tion. The sealed type is indicated by the suffix "-2RS" at the end of the identification number.

Steel-on-steel Spherical Bushings GE … G，GE … GS

As compared with the GE … E and GE … ES types, these bushings have larger load capacities and larger permissible tilting angles. The dimension series also conform to ISO standards, and they can be used internationally. The outer ring is split at one position. The GE … G and GE … GS types are available. They are classified by bushing size.The GE … GS type can be provided with seals, which are double-lip type polyurethane seals effective for prevention against grease leakage and dust penetra-tion. The sealed type is indicated by the suffix "-2RS" at the end of the identification number.

Steel-on-steel Spherical Bushings SBB

These are inch series bushings. The outer ring is split at one position.These bushings can be provided with seals, which are double-lip type polyurethane seals effective for pre-vention against grease leakage and dust penetration. The sealed type is indicated by the suffix "-2RS" at the end of the identification number.

Maintenance-free Spherical Bushings GE … EC

These bushings have the same boundary dimensions as the GE … ES type and can be used internationally. A special PTFE liner reinforced with copper alloy meshes is used on the sliding surface. Therefore, creep deformation due to compressive loads is small, and wear resistance is superior. These bushings are used as maintenance-free bushings.These bushings can be provided with synthetic resin seals which are effective in preventing dust penetra-tion. They are indicated by the suffix "-2RS" at the end of the identification number.Spherical Bushings with superior rust prevention properties, which can be used in a corrosive environ-ment or in an environment where water splashes, are also available on request. Please consult IKO.

Identification numberThe identification number of Spherical Bushings con-sists of a model code, a size and any supplemental codes. Examples are shown below.

ClearanceThe radial internal clearances of Spherical Bushings are the values before splitting the outer ring, and are shown in Tables 4, 5 and 6. The radial internal clear-ances of the inch series are shown in the dimension table.Clearances other than these can also be prepared on request. Please consult IKO.

AccuracyThe tolerances of Steel-on-steel Spherical Bushings of the metric series is shown in Table 2.The tolerances of the GE type are applicable to bush-ings before splitting the outer ring and after surface treatment.The tolerances of the SB and SB…A types are applic-able to bushings before splitting the outer ring and before surface treatment.The tolerances of the GE…EC type are applicable to bushings before splitting the outer ring.The tolerances of the Spherical Bushings of the inch series are shown in Table 3. The tolerances of the bore diameter are applicable to bushings after surface treatment, while other tolerances are applicable to bushings before splitting the outer ring and before surface treatment.Although minor dimensional changes may occur dur-ing surface treatment, they have negligible influence on the overall performance.

unit: μ mTable 2 Tolerances of inner and outer rings of metric series (JIS Class 0)

d or D（1）Nominal bore dia.

or outside dia. mm

Over Incl. High Low High Low High Low

2.5

6

18

30

50

80

120

150

180

250

315

400

6

18

30

50

80

120

150

180

250

315

400

500

0

0

0

0

0

0

0

0

0

0

0

0

− 8− 8− 10

− 12

− 15

− 20

− 25

− 25

− 30

− 35

− 40

− 45

−− 8− 9− 11

− 13

− 15

− 18

− 25

− 30

− 35

− 40

− 45

− 120

− 120

− 120

− 120

− 150

− 200

− 250

− 250

− 300

− 350

− 400

− 450

−0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

∆dmpSingle plane

mean bore dia. deviation


∆Bs or ∆CsDeviation of a single inner ring width or

outer ring width

Note(1)　d for ∆dmp, ∆Bs and ∆Cs and D for ∆Dmp, respectively.

unit: μ mTable 3 Tolerances of inner and outer rings of inch series SBB

d or D（1）Nominal bore dia. or

outside dia.mm

Over Incl. Low High Low High Low

−50.800

76.200

80.962

120.650

152.400

177.800

50.800

76.200

80.962

120.650

152.400

177.800

222.250

0

0

0

0

0

−−

− 13

− 15

− 20

− 20

− 25

−−

− 13

− 15

− 15

− 20

− 25

− 25

− 30

− 130

− 130

− 130

− 130

− 130

− 130

− 130

0

0

0

0

0

0

0

0

0

0

0

0

0

0

∆dmpSingle plane mean bore

dia. deviation


∆Bs or ∆CsDeviation of a single inner ring width or

outer ring width

Note(1)　d for ∆dmp, ∆Bs and ∆Cs and D for ∆Dmp, respectively.

High

unit: μ mTable 4 Radial internal clearance of SB and SB … A types (Steel-on-steel)

SB type

Min. Max. Min. Max.

12152022253035404550556065707580859095

100110115120130150

70

75

85

90

95

100

110

120

125

140

150

160

170

185

200

215

32

40

60

85

100

68

82

50 100

120

72 142

165

192

dNominal bore dia.

mm

SB … A type

K


dNominal bore dia.

mm

GE…EGE…ES

GE…GGE…GS

4568

101215172025303540455060708090

100110120140160180200220240260280300

32 68

40

50

60

72

85

100

110

82

100

120

142

165

192

214


Min. Max.

Remark　Also applicable to bushings with seals.

−−−

68

101215172025303540455060708090

100110120140160180200220240260280

unit: μ m

Table 6 Radial internal clearance of GE … EC type (Maintenance-free)

dNominal bore dia.

mm

1517202530354045506070

0 40

0 50

0 60

0 72


Min. Max.

Remark　Also applicable to bushings with seals.

FitThe recommended fits for Spherical Bushings are shown in Tables 7 and 8.

Selection of Spherical Bushings

Table 7 Recommended fits for Steel-on-steel Spherical Bushings

Condition

Normal operation

With directionally indeterminate load

h6，j6

m6，n6

H7，J7

M7，N7

Tolerance class

Shaft Housing bore

Remark　N7 tolerance is recommended for light metal housings.

Table 8 Recommended fits for Maintenance-free Spherical Bushings


h6，j6 H7，J7，K7

Tolerance class of housing bore

Remark　K7 tolerance is recommended for light metal housings.

Selection between the steel-on-steel type and the maintenance-free type is made considering the oper-ating conditions such as load, lubrication, tempera-ture, and sliding velocity.

Load capacity

1 Dynamic load capacityThe dynamic load capacity Cd is the maximum allow-able load that can be applied on a spherical bushing under oscillating motion. It is obtained on the basis of the contact pressure on the spherical surfaces. The dynamic load capacity is also used for calculating the life of spherical bushings.The recommended value of bushing load is obtained by multiplying the dynamic load capacity Cd by a numerical factor, which differs depending on the bushing type and the load condition. A guideline for selection is shown in Table 9.

Table 9 Guide for determination of load

Type of bushing

Steel-on-steel

Maintenance-free

≦ 0.3Cd

≦ Cd

≦ 0.6Cd

≦ 0.5Cd

Load direction

Constant Alternate

When the magnitude of load exceeds the value given in Table 9, please consult IKO.The dynamic load capacity Cdt considering the influ-ence of bushing temperature can be obtained from the following equation using the temperature factor.

　　　Cdt＝ft Cd ……………………………………(1)　　where, Cdt：Dynamic load capacity considering temperature increase N

　　　　　　 ft：Temperature factor (Refer to Table 10.)

　　　　　Cd：Dynamic load capacity N (Refer to the dimension tables.)

unit: μ mTable 5 Radial internal clearance of GE type (Steel-on-steel)

1 2 4 6 10 20 40 60 100 2001

2

4

68

10

20

40

6080

100

V mm/s

pN

/mm

2

2 Static load capacityThe static load capacity Cs is the maximum static load that can be applied on the spherical bushing without breaking inner and outer rings or causing any perma-nent deformation severe enough to render the bush-ing unusable.It must be noted that if the magnitude of the applied load becomes comparable to the static load capacity of bushing, the stresses in the shaft or housing may also reach to their limits. This possibility must be taken into consideration in the design.

Equivalent radial loadSpherical Bushings can take radial and axial loads at the same time. When the magnitude and direction of loads are constant, the equivalent radial load can be obtained from the following equation.

　　　P＝ Fr ＋ YFa …………………………………(2)　　where, P：Equivalent radial load　N

　　　　　Fr ：Radial load　N

　　　　　Fa：Axial load　N

　　　　　　Y：Axial load factor (Refer to Table 11.)

Table 10 Temperature factor　ft

Type of bushing

Steel-on-steel

Maintena nce-free

Without seals

With seals

Without seals

With seals

1

1

1

1

1

−

1

−

1

−

0.9

−

1

−

0.75

−

1

−

0.55

−

0.7

−

−

−

Temperature　

− 30＋ 80

＋ 80＋ 90

＋ 90＋ 100

＋ 100＋ 120

＋ 120＋ 150

＋ 150＋ 180

Table 11 Axial load factor　YFa/Fr

Type of bushing

Steel-on-steel

Maintenance-free

1

1

2

2

3

3 Unusable

4 5 Unusable

0.1 0.2 0.3 0.4 0.5 ＞ 0.5

Before attempting to calculate the life, make sure that the operating conditions are within the permissible range by referring to the pV diagram in Fig.1. When the operating conditions are out of the permis-sible range, please consult IKO. The contact pressure p and the sliding velocity V are obtained from the following equations.

　　　p＝

100P ……………………………………(3)　　　　　

Cdt

　　　V＝5.82×10−4dkβf ………………………(4)　　where,　p：Contact pressure　N/mm2

　　　　　 P：Equivalent radial load N (Refer to equation (2). )

　　　　　Cdt：Dynamic load capacity considering temperature increase　N

(Refer to equation (1).)

　　　　　 V：Sliding velocity　mm/s

　　　　　dk：Sphere diameter　mm

(Refer to the dimension tables.)

　　　　　2β：Oscillating angle　degrees (Refer to Fig.2.)

　　　　　　　 when β＜5°, β＝5　　　　　　　 when rotating, 　β＝90　　　　　 f：Number of oscillations per minute　min-1

Life

The life of Spherical Bushings is defined as the total number of oscillating motions before the bushings cannot be operated normally because of wear, increase in internal clearance, increase in sliding torque, rise of operating temperature, etc.As the actual life is affected by many factors such as the material of the sliding surface, the magnitude and direction of load, lubrication, sliding velocity, etc., the calculated life can be used as a practical measure of expected service life. 1 Life of Steel-on-steel spherical bushings［1］Confirmation of pV value

Fig.1 pV diagram of Steel-on-steel spherical bushings

Fig.2 Oscillating angle

Co

nta

ct p

ress

ure

Sliding velocity

When alternate loads are applied, this range is also permissible.

Permissible range

Oscillating angle

β β

K


1 2 4 6 10 20 40 60 100 200

1

2

4

6

810

20

40

60

100

V mm/s

pN

/mm

2

0.20.01

0.02

0.030.040.05

0.1

0.2

0.30.40.5

0.5 1

1

2

345

5 10 50 100150

V mm /s

b3［2］Life calculationThe life of steel-on-steel spherical bushings can be calculated from the following equations.

　　　G＝

3.18b1b2b3　 Cdt　×105 …………… (5)　　　　　　 dkβ　 P

　　　Lh＝

G　 ……………………………………(6)　　　　

60f

　　where, G：Life (Total number of oscillations)

　　　　　 b1：Load directional factor (Refer to Table 12.)

　　　　　 b2：Lubrication factor (Refer to Table 13.)

　　　　　 b3：Sliding velocity factor (Refer to Fig.3.)

　　　　　Cdt：Dynamic load capacity considering temperature increase　N(Refer to equation (1).)

　　　　　 P：Equivalent radial load　N (Refer to equation (2).)

　　　　　Lh：Life in hours　h

　　　　　 f：Number of oscillations per minute　min-1

Table 12 Load directional factor b1 (Steel-on-steel)　

Load direction

Load directional factor　b1 1 5

Constant Alternate

Table 13 Lubrication factor　b2

Periodical lubrication

Lubrication factor　b2 1 15

None Regular

Fig.3 Sliding velocity factor

Fig.4 pV diagram of Maintenance-free spherical bushings

（　）2

2 Life of Maintenance-free spherical bushings［1］Confirmation of pV valueBefore attempting to calculate the life, make sure that the operating conditions are within the permissible

range by referring to the pV diagram in Fig.4. When the operating conditions are out of the permis-sible range, please consult IKO.

The contact pressure p and the sliding velocity V are obtained from equations (3) and (4) shown on page K6.

［2］Life calculationThe life of maintenance-free spherical bushings is

obtained from the total sliding distance S which is given in Fig.5 for the contact pressure p obtained from equation (3). The total number of oscillations and life in hours can be obtained from the following equations.

　　　G＝ 16.67× b1

Sf …………………………(7)　　　　　　　

V　　　

Lh＝ G　

……………………………………(8)　　　　 60f

　　where,　G：Life (Total number of oscillations)

　　　　　　b1：Load directional factor (Refer to Table 14.)

　　　　　　 S：Total sliding distance m (Refer to Fig.5.)

　　　　　　 f：Number of oscillations per minute　min-1

　　　　　　V：Sliding velocity　mm/s　　　　　 Lh：Life in hours　h

Table 14 Load directional factor b1 (Maintenance-free)

Load direction

Load directional factor　b1 1 0.2（1）

Constant Alternate

Note(1)　 This value is applicable when the load changes com-paratively slowly. When the load changes rapidly, please consult IKO, as the factor degreases sharply.

Sliding velocity

Slid

ing

vel

oci

ty f

acto

r

Load directi

on : Alte

rnate

Load

dire

ction

: Con

stant

Co

nta

ct p

ress

ure

Sliding velocity

When alternate loads are applied, this range is also permissible.

Permissible range

√

Fig.5 Total sliding distance against contact pressure of Maintenance-free spherical bushings

LubricationSteel-on-steel Spherical Bushings require periodic grease lubrication as a general rule. During initial operation, it is recommended to shorten the lubrica-tion interval. Lithium soap based grease (NLGI con-sistency No.2) containing molybdenum disulfide (MoS2) is widely used as the lubrication grease. For Maintenance-free Spherical Bushings, lubrication is not required. However, supplying lithium soap based grease before operation can extend the life of the Spherical Bushing. Also, to protect the bearing from foreign substances and corrosion, it is effective to fill the area around the bearing with grease.

Oil HoleThe number of oil holes on inner and outer rings is shown in Table 15.

Table 15 Number of oil holes on inner and outer rings

Bushing type

0

2

2

0


Metric series

GE … E

GE … G

SB，SB … A

GE … ES，GE … GS

SBB

GE …

EC

Inch series

Maintenance-freeSpherical Bushings

Metric series

Number of oil holes on inner and outer rings

Remark　 Types with oil holes are also provided with oil grooves on inner and outer rings.

Co

nta

ct p

ress

ure

Total sliding distance

1 2 5 10

10

0

20

30

40

50

60

70

80

90

100

10320 50 100 200 500 1000 ×

S

N

m

mm

/2

p

K


Operating Temperature RangeThe operating temperature range for Spherical Bushings with seals is -30 C〜+80 C.The maximum allowable temperature for Spherical Bushings without seals is +180 C for the steel-on-steel type and +150 C for the maintenance-free type.

Precautions for Use

Design of shaftWhen the load is large, sliding may occur between the shaft and the inner ring bore of bushing. For such cases, it is necessary to prepare the shaft with a hard-ness of 58HRC or greater and surface roughness of

0.8 μmRa or less.Furthermore, attention must be paid to the strength of shaft because the shear and/or bending stresses in the shaft may surpass the allowable values even when the load is below the static load capacity of Spherical Bushings.

Design of housingThe housing should have sufficient rigidity to avoid harmful deformation under load. When the housing shown in Fig.6 is used, it should be designed with sufficient strength as follows.

Fig.6 Shape of housing

Fig.7 Stress concentration factor

1 When the load acts in the YL direction; Select the housing material considering the compres-sive stress obtained from the following equation.

　　　σ1＝ F

……………………………………(9)　　　　 CD

　　where,　 σ1： Maximum compressive stress occur-

ring in the housing bore　N/mm2

　　　　　　　F：Applied load　N

　　　　　　　C：Width of outer ring and housing　mm

　　　　　　　D：Outside diameter of outer ring　mm

2 When the load acts in the Yu direction ;Select the housing material considering the tensile stress obtained from the following equation. 　　　　 σ2＝

　　F　 k ………………………(10)　　　　　 C（DH−D）

　　where,　 σ2： Maximum tensile stress occurring

in the housing bore　N/mm2

　　　　　　　F：Applied load　N

　　　　　　　C：Width of outer ring and housing　mm

　　　　　　DH：Outside diameter of housing　mm

　　　　　　　D：Outside diameter of outer ring　mm

　　　　　　　k：Stress concentration factor (Refer to Fig.7.)

Str

ess

con

cen

trat

ion

fac

tor

D

C

FF

DH

YU

YL

10 2 3 4 5 6 7 8 9

1

0

2

3

4

5

6

7

8

9

D DH /

k

Mounting

Fig.8 Relationship between the split plane and the loading direction

Fig.9 Mounting method


1 When mounting Spherical Bushings, pay attention to the location of the split plane of the outer ring. Set the split plane at right angles to the direction of load to avoid the application of load to the split plane as shown in Fig. 8. 2 The shoulder dimensions of shaft and housing are shown in the dimension tables.

When setting the interference fit side When the inner and outer rings are assembled at the same time

Split plane

Load

Load

K


SPHERICAL BUSHINGS



Notes(1)　　Minimum allowable value of chamfer dimensions r1 and r2 　　 (2)　　When Spherical Bushings are used with full tilting angle, the shaft shoulder dimesion must be less than the maximum value of da.Remarks1.　The inner ring and the outer ring have an oil groove and two oil holes, respectively. 2.　 No grease is prepacked. Perform proper lubrication.

Shaft dia.

mm


d D B C dk rs min(1)


Mass (Ref.)

kg

0.019120.028150.053200.085220.116250.225300.300350.375400.600450.870501.26551.70602.05652.22703.02753.98804.29854.71906.05957.42

12

15

20

22

25

30

35

40

45

50

55

60

65

70

75

80

85

90

95

100

22

26

32

37

42

50

55

62

72

80

90

100

105

110

120

130

135

140

150

160

11

13

16

19

21

27

30

33

36

42

47

53

55

58

64

70

74

76

82

88

9

11

14

16

18

23

26

28

31

36

40

45

47

50

55

60

63

65

70

75

18

22

28

32

36

45

50

55

62

72

80

90

94

100

110

120

125

130

140

150

0.3

0.3

0.3

0.3

0.3

0.6

0.6

0.6

0.6

0.6

0.6

0.6

0.6

0.6

0.6

0.6

0.6

0.6

0.6

1

7

6

4

6

5

6

5

6

5

5

5

6

5

5

5

5

6

5

5

5100

SB 12A

SB 15A

SB 20A

SB 22A

SB 25A

SB 30A

SB 35A

SB 40A

SB 45A

SB 50A

SB 55A

SB 60A

SB 65A

SB 70A

SB 75A

SB 80A

SB 85A

SB 90A

SB 95A

SB 100A

SB 122211

SB 152613

SB 203216

SB 223719

SB 254221

SB 305027

SB 355530

SB 406233

SB 457236

SB 508042

SB 559047

SB 6010053

SB 6510555

SB 7011058

SB 7512064

SB 8013070

SB 8513574

SB 9014076

SB 9515082

SB 10016088

α

Permissible tilting angle

degree

Mounting dimensionsmm

Min. Max. Max. Min.

Static loadcapacity

Cs

N

14

17.5

22.5

24.5

27.5

34.5

39.5

44

49.5

54.5

59.5

64.5

69.5

74.5

79.5

84.5

89.5

94.5

99.5

105.5

14

17.5

23

25.5

29

36

40

44

50.5

58.5

64.5

72.5

76

81.5

89.5

97.5

100.5

105.5

113.5

121.5

19.5

23.5

29.5

34.5

39.5

45.5

50.5

57.5

67.5

75.5

85.5

95.5

100.5

105.5

115.5

125.5

130.5

135.5

145.5

154.5

17

21

26

30

34

42

46.5

51.5

58

67

74.5

83.5

87

93

102

112

116

121

130

139

15 900

23 700

38 400

50 200

63 500

101 000

127 000

151 000

188 000

254 000

314 000

397 000

433 000

490 000

593 000

706 000

772 000

829 000

961 000

1 100 000

95 300

142 000

231 000

301 000

381 000

609 000

765 000

906 000

1 130 000

1 530 000

1 880 000

2 380 000

2 600 000

2 940 000

3 560 000

4 240 000

4 630 000

4 970 000

5 770 000

6 620 000

(2)

SBSB … A

Dynamic loadcapacity

Cd

N

D

BC

r2

d

dk

r2

r1

r1

α

α

D

BC

r2

d

dk

r2

r1

r1

α

α

Da

da

da Da

K



SPHERICAL BUSHINGS

Shaft dia.

mm


d D B C dk rs min(1)


Mass (Ref.)

kg α


degree

Notes(1)　　Minimum allowable value of chamfer dimensions r1 and r2 　　 (2)　　When Spherical Bushings are used with full tilting angle, the shaft shoulder dimension must be less than the maximum value of da.Remarks1.　The inner ring and the outer ring have an oil groove and two oil holes, respectively. 2.　No grease is prepacked. Perform proper lubrication.

8.5511010.311512.412013.813017.0150

110

115

120

130

150

170

180

190

200

220

93

98

105

110

120

80

85

90

95

105

160

165

175

185

205

1

1

1

1

1

SB 110A

SB 115A

SB 120A

SB 130A

SB 150A

SB 11017093

SB 11518098

SB 120190105

SB 130200110

SB 150220120

5

5

5

5

5



Min. Max. Max. Min.

Static loadcapacity

Cs

N

115.5

120.5

125.5

135.5

155.5

130

132.5

140

148.5

166

164.5

174.5

184.5

194.5

214.5

149

152

162

171

189

1 260 000

1 380 000

1 540 000

1 720 000

2 110 000

7 530 000

8 250 000

9 270 000

10 300 000

12 700 000

(2)

SBSB … A


Cd

N

D

BC

r2

d

dk

r2

r1

r1

α

α

D

BC

r2

d

dk

r2

r1

r1

α

α

Da

da

da Da

K


Notes(1)　　Minimum allowable value of chamfer dimensions r1 and r2 　　 (2)　　When Spherical Bushings are used with full tilting angle, the shaft shoulder dimension must be less than the maximum value of da.Remarks1.　GE…E has no oil hole. Others are provided with an oil groove and two oil holes on the inner ring and outer ring, respectively. 2.　No grease is prepacked. Perform proper lubrication.


Shaft dia.

mm


d D B C dk r1s min r2s min(1)


Mass (Ref.)

kg

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.6

0.6

0.6

0.6

0.6

0.6

1

1

1

1

1

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.6

0.6

1

1

1

1

1

1

1

1

1

16

13

13

15

12

11

8

10

9

7

6

6

7

7

6

6

6

6

5

7

5

7

6

4

4

4

4

4

4

3

4

4

3

5

α α1(1)


degree

GE … E

0.00340.00450.00460.00880.012100.017120.032150.049170.065200.115250.160300.258350.315400.413450.560501.10601.54702.29802.82904.43

4

5

6

8

10

12

15

17

20

25

30

35

40

45

50

60

70

80

90

100

12

14

14

16

19

22

26

30

35

42

47

55

62

68

75

90

105

120

130

150

5

6

6

8

9

10

12

14

16

20

22

25

28

32

35

44

49

55

60

70

3

4

4

5

6

7

9

10

12

16

18

20

22

25

28

36

40

45

50

55

8

10

10

13

16

18

22

25

29

35.5

40.7

47

53

60

66

80

92

105

115

130100

GE 4E

GE 5E

GE 6E

GE 8E

GE 10E

GE 12E

GE 15ES

GE 17ES

GE 20ES

GE 25ES

GE 30ES

GE 35ES

GE 40ES

GE 45ES

GE 50ES

GE 60ES

GE 70ES

GE 80ES

GE 90ES

GE 100ES

GE 15ES-2RS

GE 17ES-2RS

GE 20ES-2RS

GE 25ES-2RS

GE 30ES-2RS

GE 35ES-2RS

GE 40ES-2RS

GE 45ES-2RS

GE 50ES-2RS

GE 60ES-2RS

GE 70ES-2RS

GE 80ES-2RS

GE 90ES-2RS

GE 100ES-2RS


SPHERICAL BUSHINGS


D

BC

r2

d

dK

r2

r1

r1

α

α


Min. Max. Max. Min.

Static loadcapacity

Cs

N

6

7.5

8

10

12.5

14.5

17.5

19.5

22.5

29

34

39.5

44.5

49.5

54.5

65.5

75.5

85.5

95.5

105.5

6

8

8

10

13

15

18

20.5

24

29

34

39.5

45

50.5

56

66.5

77.5

89

98

109.5

9.5

11.5

11.5

13.5

16.5

19.5

23.5

27.5

32.5

37.5

42.5

49.5

56.5

62.5

69.5

84.5

99.5

114.5

124.5

144.5

8

10

10

13

15.5

17

22.5

26

30.5

37

41.5

48

54.5

60

66

79

91

103

112

127

2 350

3 920

3 920

6 370

9 410

12 400

19 400

24 500

34 100

55 700

71 800

92 200

114 000

147 000

181 000

282 000

361 000

463 000

564 000

701 000

14 100

23 500

23 500

38 200

56 500

74 100

117 000

147 000

205 000

334 000

431 000

553 000

686 000

883 000

1 090 000

1 690 000

2 170 000

2 780 000

3 380 000

4 210 000

(2)

GE … ES-2RSGE … ES


Cd

N

D

BC

r2

d

dk

r2

r1

r1

α

α

D

BC

r2

d

dk

r2

r1

r1

α1

α1

Da da

da Da

K



Shaft dia.

mm




Mass (Ref.)

kg

4.94110 8.12120 11.4140 14.4160 18.9180 28.1200 36.1220 40.4240 52.0260 66.0280 76.0300

110

120

140

160

180

200

220

240

260

280

300

160

180

210

230

260

290

320

340

370

400

430

70

85

90

105

105

130

135

140

150

155

165

55

70

70

80

80

100

100

100

110

120

120

140

160

180

200

225

250

275

300

325

350

375

1

1

1

1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1

1

1

1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

6

6

7

8

6

7

8

8

7

6

7

4

4

5

6

5

6

6

6

6

5

6

GE 110ES

GE 120ES

GE 140ES

GE 160ES

GE 180ES

GE 200ES

GE 220ES

GE 240ES

GE 260ES

GE 280ES

GE 300ES

GE 110ES-2RS

GE 120ES-2RS

GE 140ES-2RS

GE 160ES-2RS

GE 180ES-2RS

GE 200ES-2RS

GE 220ES-2RS

GE 240ES-2RS

GE 260ES-2RS

GE 280ES-2RS

GE 300ES-2RS

α α1(1)


degree



SPHERICAL BUSHINGS



Min. Max. Max. Min.

Static loadcapacity

Cs

N

115.5

125.5

145.5

165.5

187

207

227

247

267

287

307

121

135.5

155.5

170

199

213.5

239.5

265

288

313.5

336.5

154.5

174.5

204.5

224.5

253

283

313

333

363

393

423

138

154

176

195

221

244

269

296

320

345

371

755 000

1 100 000

1 240 000

1 570 000

1 770 000

2 450 000

2 700 000

2 940 000

3 510 000

4 120 000

4 410 000

4 530 000

6 590 000

7 410 000

9 410 000

10 600 000

14 700 000

16 200 000

17 700 000

21 000 000

24 700 000

26 500 000

(2)

GE … ES-2RSGE … ES


Cd

N

D

BC

r2

d

dk

r2

r1

r1

α

α

D

BC

r2

d

dk

r2

r1

r1

α1

α1

Da da

da Da

K


GE … G


Shaft dia.

mm




Mass (Ref.)

kg

0.0106 0.0158 0.02210 0.04112 0.05915 0.08317 0.15520 0.21525 0.33030 0.40035 0.51540 0.66045 1.5050 2.0560 3.0070 3.6080 5.4190 6.15100 9.70110 15.5

6

8

10

12

15

17

20

25

30

35

40

45

50

60

70

80

90

100

110

120

16

19

22

26

30

35

42

47

55

62

68

75

90

105

120

130

150

160

180

210

9

11

12

15

16

20

25

28

32

35

40

43

56

63

70

75

85

85

100

115

5

6

7

9

10

12

16

18

20

22

25

28

36

40

45

50

55

55

70

70

13

16

18

22

25

29

35.5

40.7

47

53

60

66

80

92

105

115

130

140

160

180

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.6

0.6

0.6

0.6

0.6

0.6

1

1

1

1

1

1

1

0.3

0.3

0.3

0.3

0.3

0.3

0.6

0.6

1

1

1

1

1

1

1

1

1

1

1

1

21

21

18

18

16

19

17

17

17

16

17

15

17

17

16

14

15

14

12

16

13

16

16

15

16

15

14

13

16

15

14

13

14

12

11

15120

GE 6G

GE 8G

GE 10G

GE 12G

GE 15GS

GE 17GS

GE 20GS

GE 25GS

GE 30GS

GE 35GS

GE 40GS

GE 45GS

GE 50GS

GE 60GS

GE 70GS

GE 80GS

GE 90GS

GE 100GS

GE 110GS

GE 120GS

GE 15GS-2RS

GE 17GS-2RS

GE 20GS-2RS

GE 25GS-2RS

GE 30GS-2RS

GE 35GS-2RS

GE 40GS-2RS

GE 45GS-2RS

GE 50GS-2RS

GE 60GS-2RS

GE 70GS-2RS

GE 80GS-2RS

GE 90GS-2RS

GE 100GS-2RS

GE 110GS-2RS

GE 120GS-2RS

α α1(1)


degree

Notes(1)　　Minimum allowable value of chamfer dimensions r1 and r2 　　 (2)　　When Spherical Bushings are used with full tilting angle, the shaft shoulder dimension must be less than the maximum value of da.Remarks1.　GE…G has no oil hole. Others are provided with an oil groove and two oil holes on the inner ring and outer ring, respectively. 2.　No grease is prepacked. Perform proper lubrication.


SPHERICAL BUSHINGS


D

r1

BC

r2

d

dK

r2

r1

α

α


Min. Max. Max. Min.

Static loadcapacity

Cs

N

8.5

10.5

12.5

14.5

17.5

19.5

22.5

29.5

34

39.5

44.5

49.5

54.5

65.5

75.5

85.5

95.5

105.5

115.5

125.5

9

11.5

13

16

19

21

25

29.5

34

39.5

44.5

50

57

67

78

87

98

111

124.5

138.5

13.5

16.5

19.5

23.5

27.5

32.5

37.5

42.5

49.5

56.5

62.5

69.5

84.5

99.5

114.5

124.5

144.5

154.5

174.5

204.5

13

15.5

17

21

26

30.5

37

41.5

48

54.5

60

66

79

91

103

112

127

138

154

176

6 370

9 410

12 400

19 400

24 500

34 100

55 700

71 800

92 200

114 000

147 000

181 000

282 000

361 000

463 000

564 000

701 000

755 000

1 100 000

1 240 000

38 200

56 500

74 100

117 000

147 000

205 000

334 000

431 000

553 000

686 000

883 000

1 090 000

1 690 000

2 170 000

2 780 000

3 380 000

4 210 000

4 530 000

6 590 000

7 410 000

(2)

GE … GS-2RSGE … GS


Cd

N

D

BC

r2

d

dk

r2

r1

r1

α

α

D

BC

r2

d

dk

r2

r1

r1

α1

α1

Da da

da Da

K



Shaft dia.

mm




Mass (Ref.)

kg

19.214025.416034.718043.820051.322066.124081.826097.4280

140

160

180

200

220

240

260

280

230

260

290

320

340

370

400

430

130

135

155

165

175

190

205

210

80

80

100

100

100

110

120

120

200

225

250

275

300

325

350

375

1

1

1.1

1.1

1.1

1.1

1.1

1.1

1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

16

16

14

15

16

15

15

15

15

14

13

14

14

14

14

14

GE 140GS

GE 160GS

GE 180GS

GE 200GS

GE 220GS

GE 240GS

GE 260GS

GE 280GS

GE 140GS-2RS

GE 160GS-2RS

GE 180GS-2RS

GE 200GS-2RS

GE 220GS-2RS

GE 240GS-2RS

GE 260GS-2RS

GE 280GS-2RS

α α1(1)


degree



SPHERICAL BUSHINGS



Min. Max. Max. Min.

Static loadcapacity

Cs

N

145.5

165.5

187

207

227

247

267

287

152

180

196

220

243.5

263.5

283.5

310.5

224.5

253

283

313

333

363

393

423

195

221

244

269

296

320

345

371

1 570 000

1 770 000

2 450 000

2 700 000

2 940 000

3 510 000

4 120 000

4 410 000

9 410 000

10 600 000

14 700 000

16 200 000

17 700 000

21 000 000

24 700 000

26 500 000

(2)

GE … GS-2RSGE … GS


Cd

N

D

BC

r2

d

dk

r2

r1

r1

α

α

D

BC

r2

d

dk

r2

r1

r1

α1

α1

Da da

da Da

K



Note(1)　　 Maximum allowable corner radius of the shaft or housing Remarks1.　The value with mark * is applicable to types without seals. For types with seals, the value is 0.4 mm. 2.　 The inner ring and the outer ring have an oil groove and two oil holes, respectively. 3.　No grease is prepacked. Perform proper lubrication.

Inch SeriesSteel-on-steel Spherical Bushings

12.700（ 12）15.875（ 58）19.050（ 34）22.225（ 78）25.400（1）31.750（114）34.925（138）38.100（112）44.450（134）50.800（2）57.150（214）63.500（212）

SBB 8

SBB 10

SBB 12

SBB 14

SBB 16

SBB 20

SBB 22

SBB 24

SBB 28

SBB 32

SBB 36

SBB 40

SBB 12-2RS

SBB 14-2RS

SBB 16-2RS

SBB 20-2RS

SBB 22-2RS

SBB 24-2RS

SBB 28-2RS

SBB 32-2RS

SBB 36-2RS

SBB 40-2RS

0.020

0.036

0.057

0.088

0.125

0.234

0.349

0.424

0.649

0.939

1.32

1.85

12.700（ 12）

15.875（ 58）

19.050（ 34）

22.225（ 78）

25.400（1 ）

31.750（114）

34.925（138）

38.100（112）

44.450（134）

50.800（2 ）

57.150（214）

63.500（212）

22.225（ 78）

26.988（1 116）

31.750（1 14）

36.512（1 716）

41.275（1 58）

50.800（2 ）

55.562（2 316）

61.912（2 716）

71.438（21316）

80.962（3 316）

90.488（3 916）

100.012（31516）

11.10( .437)

13.89( .547)

16.66( .656)

19.43( .765)

22.22( .875)

27.76(1.093)

30.15(1.187)

33.32(1.312)

38.89(1.531)

44.45(1.750)

50.01(1.969)

55.55(2.187)

9.52( .375)

11.91( .469)

14.27( .562)

16.66( .656)

19.05( .750)

23.80( .937)

26.19(1.031)

28.58(1.125)

33.32(1.312)

38.10(1.500)

42.85(1.687)

47.62(1.875)

Mass (Ref.)

kg


d D B CWithout seal With seals

Shaft dia.

mm(inch)

Shaft dia. 12.700− 63.500mm

SPHERICAL BUSHINGS


Cd

N

Static loadcapacity

Cs

Ndk


mmMin./Max. d1


18 ( .709)

23 ( .906)

27.5(1.083)

32 (1.260)

36 (1.417)

45 (1.772)

49 (1.929)

55 (2.165)

64 (2.520)

73 (2.874)

82 (3.228)

91 (3.583)

0.05 ／ 0.15

0.05 ／ 0.15

0.08 ／ 0.18

0.08 ／ 0.18

0.08 ／ 0.18

0.08 ／ 0.18

0.08 ／ 0.18

0.08 ／ 0.18

0.08 ／ 0.18

0.08 ／ 0.18

0.10 ／ 0.20

0.10 ／ 0.20

14.0

17.9

21.4

25.0

28.0

35.1

38.5

43.3

50.4

57.6

64.9

72.0

0.2

0.2

0.6

0.6

0.6

0.6

0.6

0.6

0.6

0.6

0.6

0.6

0.6

0.8

*0.8

*0.8

*0.8

0.8

0.8

0.8

0.8

0.8

0.8

0.8

16 800

26 900

38 500

52 300

67 300

105 000

126 000

154 000

209 000

273 000

345 000

425 000

101 000

161 000

231 000

314 000

404 000

630 000

755 000

925 000

1 250 000

1 640 000

2 070 000

2 550 000

ras maxMax.

(1) rbs maxMax.

(1)

SBB … -2RSSBB SBB … -2RSSBB


D

BC

rb

d1d

dk

ra

D

BC

rb

d1d

dk

ra

12° 7°

K



Note(1)　　 Maximum allowable corner radius of the shaft or housing Remarks1.　The inner ring and the outer ring have an oil groove and two oil holes, respectively. 2.　No grease is prepacked. Perform proper lubrication.

69.850（234）

76.200（3）82.550

（314）88.900

（312）95.250

（334）101.600（4）

107.950（414）114.300（412）120.650（434）127.000（5）

152.400（6）

SBB 44

SBB 48

SBB 52

SBB 56

SBB 60

SBB 64

SBB 68

SBB 72

SBB 76

SBB 80

SBB 96

SBB 44-2RS

SBB 48-2RS

SBB 52-2RS

SBB 56-2RS

SBB 60-2RS

SBB 64-2RS

SBB 68-2RS

SBB 72-2RS

SBB 76-2RS

SBB 80-2RS

SBB 96-2RS

2.44

3.12

3.92

4.83

5.87

7.07

8.46

9.94

11.6

13.5

17.6

69.850（234）

76.200（3 ）

82.550（314）

88.900（312）

95.250（334）

101.600（4 ）

107.950（414）

114.300（412）

120.650（434）

127.000（5 ）

152.400（6 ）

111.125（438）

120.650（434）

130.175（518）

139.700（512）

149.225（578）

158.750（614）

168.275（658）

177.800（7 ）

187.325（738）

196.850（734）

222.250（834）

61.11(2.406)

66.68(2.625)

72.24(2.844)

77.77(3.062)

83.34(3.281)

88.90(3.500)

94.46(3.719)

100.00(3.937)

105.56(4.156)

111.12(4.375)

120.65(4.750)

52.37(2.062)

57.15(2.250)

61.90(2.437)

66.68(2.625)

71.42(2.812)

76.20(3.000)

80.95(3.187)

85.72(3.375)

90.47(3.562)

95.25(3.750)

104.78(4.125)

Mass (Ref.)

kg


d D B CWithout seal With seals

Shaft dia.

mm(inch)

Shaft dia. 69.850− 152.400mm

SPHERICAL BUSHINGS

Inch SeriesSteel-on-steel Spherical Bushings


Cd

N

Static loadcapacity

Cs

Ndk


mmMin./Max. d1


100(3.937)

110(4.331)

119(4.685)

128(5.039)

137(5.394)

146(5.748)

155(6.102)

164(6.457)

173(6.811)

183(7.205)

207(8.150)

0.10 ／ 0.20

0.10 ／ 0.20

0.13 ／ 0.23

0.13 ／ 0.23

0.13 ／ 0.23

0.13 ／ 0.23

0.13 ／ 0.23

0.13 ／ 0.23

0.13 ／ 0.23

0.13 ／ 0.23

0.13 ／ 0.23

79.0

86.5

94.1

101.6

108.4

115.8

122.6

129.8

136.8

144.9

167.5

0.6

0.6

0.6

0.6

0.6

0.6

0.8

0.8

0.8

0.8

0.8

0.8

0.8

0.8

0.8

0.8

0.8

1.1

1.1

1.1

1.1

1.1

514 000

616 000

722 000

837 000

960 000

1 090 000

1 230 000

1 380 000

1 530 000

1 710 000

2 130 000

3 080 000

3 700 000

4 330 000

5 020 000

5 760 000

6 550 000

7 380 000

8 270 000

9 210 000

10 300 000

12 800 000

ras maxMax.

(1)rbs maxMax.

(1)

SBB … -2RSSBB SBB … -2RSSBB


D

BC

rb

d1d

dk

ra

D

BC

rb

d1d

dk

ra

12° 7°

K



Maintenance-free Spherical Bushings

Shaft dia.

mm




Mass (Ref.)

kg

0.032150.049170.065200.115250.160300.258350.315400.413450.56050

1.1060 1.5470

15

17

20

25

30

35

40

45

50

60

70

26

30

35

42

47

55

62

68

75

90

105

12

14

16

20

22

25

28

32

35

44

49

9

10

12

16

18

20

22

25

28

36

40

22

25

29

35.5

40.7

47

53

60

66

80

92

0.3

0.3

0.3

0.6

0.6

0.6

0.6

0.6

0.6

1

1

0.3

0.3

0.3

0.6

0.6

1

1

1

1

1

1

8

10

9

7

6

4

4

4

4

4

3

4

GE 15EC

GE 17EC

GE 20EC

GE 25EC

GE 30EC

GE 30EC-2RS

GE 35EC-2RS

GE 40EC-2RS

GE 45EC-2RS

GE 50EC-2RS

GE 60EC-2RS

GE 70EC-2RS

α α1(1)


degree

Notes(1)　Minimum allowable value of chamfer dimensions r1 and r2 　　 (2)　When Spherical Bushings are used with full tilting angle, the shaft shoulder dimension must be less than the maximum value of da.Remark　No oil hole is provided.


SPHERICAL BUSHINGS


Min. Max. Max. Min.

Static loadcapacity

Cs

N(2)

GE … EC-2RSGE … EC


Cd

N

17.5

19.5

22.5

29

34

39.5

44.5

49.5

54.5

65.5

75.5

18

20.5

24

29

34

39.5

45

50.5

56

66.5

77.5

23.5

27.5

32.5

37.5

42.5

49.5

56.5

62.5

69.5

84.5

99.5

21.5

24.5

28

34

41.5

48

54.5

60

66

79

91

19 400

24 500

34 100

55 700

71 800

92 200

114 000

147 000

181 000

282 000

361 000

48 500

61 300

85 300

139 000

180 000

230 000

286 000

368 000

453 000

706 000

902 000

D

BC

r2

d

dk

r2

r1

r1

α

α

D

BC

r2

d

dk

r2

r1

r1

α1

α1

Da

da

da Da

K

K29 K30

PILLOBALL Spherical Bushings - Insert Type

PILLOBALL Rod Ends - Insert Type

PILLOBALL Rod Ends - Die-cast Type

PILLOBALL Rod Ends - Maintenance-free Type

Structure and FeaturesIKO PILLOBALLs are compact self-aligning spherical bushings that can support a large radial load and a bi-directional axial load at the same time.These bushings are classified by sliding surface types, namely, insert type, die-cast type and mainte-nance-free type. In the insert type, a spherical inner ring makes contact with the special copper alloy bush-ing with superior run-in properties. In the die-cast type, a spherical inner ring makes direct contact with the bore surface of the body of special zinc die-cast alloy. In the maintenance-free type, a spherical inner ring makes contact with the special PTFE liner of maintenance-free type. Thus, a smooth rotational and oscillatory motion can be achieved with superior anti-wear and loading properties in each type.PILLOBALL Rod Ends have either a female thread in the body or a male thread on the body, and they can be easily assembled onto machines.PILLOBALLs are used in control and link mechanisms in machine tools, texti le machines, packaging machines, etc. The maintenance-free type is espe-cially suitable for loading in one direction and is the best choice for machines in which oil must be avoided such as food processing machines, or machines which cannot be re-lubricated.

Structures of maintenance-free type PILLOBALLs

Special PTFE liner(Reinforced with copper

alloy meshes)

Body (Zinc chromate plated)

Spherical inner ring(Chromium plated)

Body(Zinc chromate plated)


Special PTFE liner(Reinforced with copper alloy meshes)

Structures of lubrication type PILLOBALLs

Outer ring

Bushing(Special copper alloy)





Spherical inner ring(Mirror-finished)




Body(Special zinc die-cast alloy)

PHS( A)

POS( A)

K


TypesIn PILLOBALLs, the types shown in Table 1 are avail-able.

Lubrication Type PILLOBALL Spherical Bushings Insert Type　PBThis type has superior anti-wear properties and high rigidity. It consists of a spherical inner ring, an outer ring, and a bushing of special copper alloy with supe-rior run-in properties inserted in between. The spheri-cal surface of the inner ring is chromium plated after heat treatment and grinding. This type is assembled with a shaft and a housing.When especially large radial and/or axial loads are applied, Spherical Bushings with molybdenum disul-

fide (MoS2) treated inner and outer rings are recom-mended. (See page K1.)

Lubrication Type PILLOBALL Rod EndsInsert Type　PHS(…A), POS(…A)，PHSB and POSBThis type has superior wear-resistant and corrosion-resistant properties as well as high rigidity. It consists of a spherical inner ring of which the spherical surface is chromium plated after heat treatment and grinding, a body with a zinc chromate plated outer surface, and an inserted bushing of special copper alloy having superior run-in properties. PHS, which has a female thread in the body, and POS, which has a male thread on the body, are available. For PHS and POS sizes 5 to 18, an A is appended after the dimensions as a model code.

Lubrication Type PILLOBALL Rod Ends Die-cast Type　PHSAThe spherical inner ring of this type is mirror-finished after heat treatment and is built in a body of special zinc die-cast alloy. The sliding surfaces of the inner ring and body are in close contact with each other. Thus, this type is an economical rod end with superior anti-wear and loading properties.

Maintenance-free Type PILLOBALL Rod EndsPHS … EC，POS … ECThis type has superior anti-corrosion properties as the

body is zinc chromate treated and the spherical inner ring is chromium plated on the sphere surface after heat treatment and grinding.A special PTFE liner, reinforced with copper alloy meshes, which is superior in anti-wear properties with little creep deformation is used for lining on the sliding surface of the body, and this type is maintenance-free.PHS … EC, which has a female thread in the body, and POS … EC, which has a male thread on the body, are available.

Identification numberThe identification number of PILLOBALLs consists of a model code, a size and any supplemental codes as shown in the examples.


Example 1

Example 2Model code

Supplemental codeSize

PHS 10

Type

EC L

Bore diameter （10mm）

Model code Size

PB 10

Type

Example 3

Bore diameter （10mm）

Left hand thread(2)


codeSize

PHSB 10

Type

NP

Bore diameter （10/16"=15.875mm）

With grease nipple(1)

Zerk type :NFFlash type:NP

Table 1 Type

Type

Insert type

Die-cast type

PB

−PHS(…A)・PHSB

PHSAPOS(…A)・POSB

− PHS … EC POS … EC

Lubrication type Maintenance-free type

Rod end Rod end

female thread female threadmale thread male thread

Spherical Bushings

Notes(1)　 Shapes of greace nipple are shown in Fig.1. In case of no indication of grease nipple type, grease nipple is not prepared.

(2)　Right hand thread is indicated with no code.

Selection of PILLOBALLLoad capacities of PILLOBALLs are determined based on the allowable contact pressure on sliding surfaces and the strength of body for each type. Thus, a suitable type and size should be selected

based on the dynamic load capacity Cd and static load capacity Cs shown in the dimension tables.

AccuracyThe accuracy of PILLOBALLs is shown in Tables 2 and 3. The maximum radial internal clearance of the insert type is 0.035 mm.

FitRecommended fits for PILLOBALLs are shown in Table 4.

Load capacity

1 Dynamic load capacityThe dynamic load capacity Cd is obtained on the basis of the contact pressure on the sliding surface. The dynamic load capacity is used for calculating the life.The dynamic load capacity considering temperature increase is obtained from the following equation using the temperature factor, which is a correction factor for the effect of PILLOBALL temperature.

　　　Cdt＝ ft Cd　……………………………………(1)　　where, Cdt： Dynamic load capacity considering

temperature increase,　N　　　　　　ft：Temperature factor (Refer to Table 5.)

　　　　　 Cd： Dynamic load capacity,　N (Refer to the dimension tables.)

unit: mmTable 2 Tolerance

Type DimensionDimension

symbolTolerance

PB

Bore dia. of inner ring

Outside dia. of outer ring

Width of inner ring

Width of outer ring



Width of inner ring

Width of inner ring


Width of inner ring

dD

H7

h6

0− 0.1

± 0.1

H7

＋ 0.038− 0.013

0− 0.127

0− 0.1

＋ 0.063− 0.012

See Table 3.

B

Cd

d

B1

B

d

B

PHS(…A)POS(…A)PHS … ECPOS … EC

PHSBPOSB

PHSA

unit: mmTable 3 Tolerance of width B of inner ring of PHSA type

dNominal bore dia. of inner ring

Over Incl. High Low

∆Bs

Deviation of a single inner ring width

−14

20

14

20

22

0

0

0

− 0.2

− 0.3

− 0.4

Table 4 Recommended fits

ConditionTolerance class

Shaft Housing bore(1)

Normal operation

Directionally indeterminate loading

h7

n6，p6

H7

N7

Note(1)　 This is applicable to PILLOBALL Spherical Bushings, Insert type.

2 Static load capacity The static load capacity Cs is the maximum static load that can be applied on the PILLOBALL without break-ing the inner or outer ring of the PILLOBALL Spherical Bushing (or the inner ring or body of the PILLOBALL Rod End), and without causing severe permanent deformation that will make the PILLOBALL unusable.

Table 5 Temperature factor　ft

Type

PBPHS(…A)，POS(…A)PHSB，POSB

PHS … ECPOS … EC

1

1

1

1

1

0.9

1

0.75

1

0.55

0.7

−

Temperature　

− 30＋ 80

＋ 80＋ 90

＋ 90＋ 100

＋ 100＋ 120

＋ 120＋ 150

＋ 150＋ 180

Fig. 1 Shapes of grease nipple

K


11

52

2

4

6

8

10

10

5020

20

40

60

100 200

V mm s/

Nmm

/2

p

As the actual life is affected by many factors such as the material of the sliding surface, the magnitude and direction of load, lubrication, sliding velocity, etc., the calculated life can be used as a measure of expected service life.

1 Life of lubrication type PILLOBALLs PB・PHS(…A)・POS(…A)・PHSB・POSB［1］Confirmation of pV valueBefore attempting to calculate the life, make sure that the operating conditions are within the permissible


The contact pressure p and the sliding velocity V are obtained from the following equations.

p＝ 50P ………………………………………(3)

　　　　CdtV＝5.82×10−4dkβ f ……………………(4)

　　where,　p：Contact pressure,　N/mm2

　　　　　　P： Equivalent radial load,　N (Refer to equation (2).)

　　　　　 Cdt：Dynamic load capacity considering

temperature increase,　N(Refer to equation (1).)

　　　　　　V：Sliding velocity,　mm/s　　　　　dk： Sphere diameter,　mm

(Refer to the dimensional tables.)

　　　　　2β：Oscillating angle degrees (Refer to Fig.3.)

　　　　　　　　when β＜ 5°, β＝ 5　　　　　　　　when rotating,　β＝ 90　　　　　 f ：Number of oscillations per minute, min-1

Equivalent radial load

PILLOBALLs can take radial and axial loads at the same time. When the magnitude and direction of loads are constant, the equivalent radial load can be obtained by the following equation.

　　　P＝ Fr＋ YFa…………………………………(2)　　where,　P：Equivalent radial load,　N　　　　　 Fr：Radial load,　N　　　　　 Fa：Axial load,　N　　　　　 Y：Axial load factor (Refer to Table 7.)

Table 7 Axial load factor　YFa／Fr

Type

PBPHS(…A)，POS(…A)PHSB，POSB

PHS … ECPOS … EC

1

1 2 3

2 3 4 5 Unusable

0.1 0.2 0.3 0.4 0.5 ＞ 0.5

Fig. 2 pV diagram of lubrication type PILLOBALLs

Table 6 Maximum operating load

Type

PB

PHS(…A)，POS(…A)，PHSB，POSB

PHSA

PHS … EC，POS … EC

≦ 0.3Cd

≦ 0.3Cd

≦ 0.3Cs

≦ 0.6Cd

≦ 0.2Cs

≦ 0.2Cs

Load direction

Constant Alternate

Remark　 Cd is the dynamic load capacity and Cs is the static load capacity.

≦ 0.16Cs

Maximum Operating Load

The recommended value of bushing load is obtained

by multiplying the dynamic load capacity Cd by a numerical factor, which differs depending on the bushing type and load condition. For PILLOBALL Rod

Ends, the static load capacity Cs must also be con-sidered in determining the applicable bushing load.Table 6 shows the guidelines for maximum operating load of PILLOBALLs. When axial loads are added in addition to radial loads, bending stress occurs in the body. Pay attention to this bending stress.

Life

The life of PILLOBALLs is defined as the total number of oscillating motions during which the PILLOBALLs can be operated without failure or malfunction due to wear, increase in internal clearance, increase in slid-ing torque and operating temperature, etc.

Unusable

Co

nta

ct p

ress

ure

Sliding velocity

Permissible range

11

2

4

68

2 5 10 20 50 100 200

10

20

40

6080

Nmm

mm

/2

p

V s/

0.2 0.5 1 5 10 50 100 1500.05

0.1

0.2

0.30.40.5

1

2

345

8

b3

V mm/s

2 Life of maintenance-free type PILLOBALLs　PHS … EC・POS … EC［1］Confirmation of pV valueBefore attempting to calculate the life, make sure that the operating conditions are within the permissible


The contact pressure p and sliding velocity V are obtained from equations (3) and (4) on page K6.

Table 8 Load directional factor b1 and lubrication factor b2 for lubrication type PILLOBALLs

Load directional factor　b1Load direction

Constant Alternate None Regular

1 5 1 15

Lubrication factor　b2Periodical lubrication

Fig. 3 Oscillating angle Fig. 4 Sliding velocity factor for lubrication type PILLOBALLs

［2］Life calculationThe life of lubrication type PILLOBALLs can be calcu-lated by the following equations.

　　　G＝ 3.18b1b2b3　

Cdt　 ×105 ……………(5)　　　　　　 dkβ　 P

　　　Lh＝ G　 ……………………………………(6)

　　　　 60f

　　where, G：Life (Total number of oscillations)

　　　　　 b1：Load directional factor (Refer to Table 8.)

　　　　　 b2：Lubrication factor (Refer to Table 8.)

　　　　　 b3：Sliding velocity factor (Refer to Fig. 4.)

　　　　　Cdt： Dynamic load capacity considering

temperature increase,　N(Refer to equation (1).)

　　　　　 P：Equivalent radial load,　N (Refer to equation (2).)

　　　　　 Lh：Life in hours,　h　　　　　 f ：Number of oscillations per minute, min-1

√￣￣（　）2

Fig. 5 pV diagram for maintenance-free type PILLOBALL Rod Ends

Slid

ing

vel

oci

ty f

acto

r

Sliding velocity

Load direction Alternate

Load

direc

tion

Consta

nt

Co

nta

ct p

ress

ure

Sliding velocity

Permissible range

Oscillating angle

β β

ββ

Oscillating angle

K


10 1020 50 100 200 500 1000 × 3

S m

10

0

20

30

40

50

Nmm

/2

p

LubricationMaintenance-free type PILLOBALL Rod Ends have a sliding surface lined with a self-lubricating lining. Therefore, they can be used without lubrication.Lubrication type PILLOBALLs are not provided with prepacked grease. Perform proper lubrication for use. Operating without lubrication will increase the wear of the sliding contact surfaces and cause seizure.

Oil Hole and Grease NippleTable 10 shows the specifications of oil hole and grease nipple on the outer ring or body. Further, lubrication nozzle models compatible with the grease nipple are shown in Table 11.For PILLOBALLs without an oil hole and grease nip-ple, apply grease directly on the spherical surface.

Table 10 Specifications of oil hole and grease nipple

Type

1 oil hole + oil groove

None

With grease nipple

None

1 oil hole

With grease nipple

None(1)

With grease nipple

None

PB

PHS(…A)　 d≦ 4

4＜ d　 d≦ 4

4＜ d≦ 6

6＜ dPOS(…A)

PHSA

PHSB・POSB

PHS … EC，POS … EC

Specification

Table 9 Load directional factor for maintenance-free type PILLOBALLs b1

Load direction

1 0.2(1)Load directional factor　b1

Constant Alternate

Note(1)　 This value is applicable when the load changes compara-tively slowly. When the load changes rapidly, please con-sult IKO, as the factor degreases sharply.

Note(1)　 Grease Nipple is available for size 4 or larger with sup-plemental code.

［2］Life calculation The life of maintenance-free type PILLOBALL Rod

Ends is obtained from the total sliding distance S which is given in Fig.5 for the contact pressure p obtained from equation (3).The total number of oscillations and life in hours can be obtained from the following equations.　　　　　G＝ 16.67× b1×

Sf ………………………(7)　　　　　　　 V

　　　Lh＝ G　 ……………………………………(8)

　　　　 60f

　　where,　G：Life (Total number of oscillations)

　　　　　　b1： Load directional factor (Refer to Table 9.)

　　　　　　S：Total sliding distance　m　　　　　　f ：Number of oscillations per minute　min-1

　　　　　　V：Sliding velocity　mm/s　　　　　 Lh：Life in hours　h

Fig. 6 Contact pressure and total sliding distance for maintenance-free type PILLOBALL Rod Ends

Bore diameter of inner ring d mm

Con

tact

pre

ssur

e

Total sliding distance

Table 11 Types and Dimension of Lubrication NozzlesType Dimension

B-5120R

A-5126T

A-5120R

Lubrication Nozzle

Body of grease gun

Remark　HSP-3(Yamada Corporation)can be used for them.The above nozzles can be atached on the standard grease gun shown below.

Operating Temperature RangeThe maximum allowable temperature for Lubrication type PILLOBALLs is +180 C for the insert type and +80 C for the die-cast type.The maximum allowable temperature for Maintenance-free type PILLOBALL Rod Ends is +150 C.

Precautions for Use 1 Tightening depthThe recommended tightening depth of the screw into the PILLOBALL Rod End body is shown below. Insert type and maintenance-free type: 1.25 times the nominal thread dia. or more. Die-cast type: 2 times the nominal thread dia. or more.

2 Allowable tilting angleThe allowable tilting angle differs depending on the

mounting structure as shown in Table 12 and Table 13.

Table 12 Allowable tilting angle

dBore diameter

mm

3

4

5

6

8

10

12

14

16

18

20

22

25

28

30

7

7

8

8

8

8

8

10

9

9

9

10

9

9

10

13

13

13

13

14

14

13

16

15

15

15

15

15

15

17

−−7

7

8

8

8

9

9

9

9

9

−−−

−−13

13

14

14

13

16

15

15

15

15

−−−

PB(1)，PHS(…A)，POS(…A)PHS … EC，POS … EC

PHSA

α1 α2α1 α2

unit: degree

Note(1)　 In the case of the PB series, α2 is applicable in general.

With female thread

PHSB 2

PHSB 2.5

PHSB 3

PHSB 4

PHSB 5

PHSB 6

PHSB 7

PHSB 8

PHSB 10

PHSB 12

PHSB 16

POSB 2

POSB 2.5

POSB 3

POSB 4

POSB 5

POSB 6

POSB 7

POSB 8

POSB 10

POSB 12

POSB 16

8

7

6

7

6

6

7

6

7

6

7

16

12

10

13

10

11

11

9

11

10

14

With male thread

α1 α2

unit: degreeTable 13 Allowable tilting angle for inch series

α1α2

K



Mass (Ref.)

g

Dynamic load capacity

Cd

N

Static load capacity

Cs

N


dBall dia.

mm(inch)

rs min(1)

Note(1)　　 Minimum allowable value of chamfer dimensions r1 and r2Remarks1. The outer ring has an oil groove and an oil hole. 2. No grease is prepacked. Perform proper lubrication.

PB

D C B d1

PB 5 5 8.5

PB 6 6 13

PB 8 8 24

PB 10 10 39

PB 12 12 58

PB 14 14 84

PB 16 16 111

PB 18 18 160

PB 20 20 210

PB 22 22 265

PB 25 25 390

PB 28 28 410

PB 30 30 610

16

18

22

26

30

34

38

42

46

50

56

62

66

6

6.75

9

10.5

12

13.5

15

16.5

18

20

22

25

25

8

9

12

14

16

19

21

23

25

28

31

35

37

7.7

9

10.4

12.9

15.4

16.9

19.4

21.9

24.4

25.8

29.6

32.3

34.8

0.2

0.2

0.2

0.2

0.2

0.3

0.3

0.3

0.3

0.3

0.6

0.6

0.6

3 270

4 200

7 010

9 810

13 100

16 800

21 000

25 700

30 800

37 400

46 200

58 400

62 300

7 850

10 100

16 800

23 500

31 400

40 400

50 400

61 600

74 000

89 700

111 000

140 000

149 000

11.112（ 716）12.700（ 12）15.875（ 58）19.050（ 34）22.225（ 78）25.400（1 ）28.575（1 18）31.750（1 14）34.925（1 38）38.100（1 12）42.862（11116）47.625（1 78）50.800（2 ）

Lubrication Type PILLOBALL Spherical Bushings Insert Type

PILLOBALL

D d d

B

C

r

r

r

r

2

2

1

1

1

PHS(…A)


PHS 3

PHS 4

PHS 5A

PHS 6A

PHS 8A

PHS 10A

PHS 12A

PHS 14A

PHS 16A

PHS 18A

PHS 20

PHS 22

PHS 25

PHS 28

PHS 30

Mass (Ref.)

g

5.7

11.9

16.5

25

43

72

107

160

210

295

380

490

750

950

1 130

3

4

5

6

8

10

12

14

16

18

20

22

25

28

30

12

14

16

18

22

26

30

34

38

42

46

50

60

66

70

4.5

5.3

6

6.75

9

10.5

12

13.5

15

16.5

18

20

22

25

25

M 3×0.5

M 4×0.7

M 5×0.8

M 6×1

M 8×1.25

M10×1.5

M12×1.75

M14×2

M16×2

M18×1.5

M20×1.5

M22×1.5

M24×2

M27×2

M30×2

6

7

8

9

12

14

16

19

21

23

25

28

31

35

37

5.2

6.5

7.7

9

10.4

12.9

15.4

16.9

19.4

21.9

24.4

25.8

29.6

32.3

34.8

10

12

14

14

17

21

24

27

33

36

40

43

48

53

56

3

4

4

5

5

6.5

6.5

8

8

10

10

12

12

12

15

5.5

8

9

11

14

17

19

22

22

27

30

32

36

41

41

5

8

9

10

12.5

15

17.5

20

22

25

27.5

30

33.5

37

40

6.5

9.5

11

13

16

19

22

25

27

31

34

37

42

46

50

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.6

0.6

0.6

27

31

35

39

47

56

65

74

83

92

100

109

124

136

145

21

24

27

30

36

43

50

57

64

71

77

84

94

103

110


Cd

N


Cs

N

1 750

2 480

3 270

4 200

7 010

9 810

13 100

16 800

21 000

25 700

30 800

37 400

46 200

58 400

62 300

3 670

4 680

5 730

6 910

10 200

13 300

16 900

20 900

25 400

30 200

35 500

41 700

72 700

87 000

92 200

Ball dia.mm

(inch)

7.938（ 516） 9.525（ 38）11.112（ 716）12.700（ 12）15.875（ 58）19.050（ 34）22.225（ 78）25.400（1 ）28.575（1 18）31.750（1 14）34.925（1 38）38.100（1 12）42.862（11116）47.625（1 78）50.800（2 ）

dThread

G d2 C1 B d1 l4 h1 l3 l5 W d3 dL r1smin(1)


Note(1)　　 Minimum allowable value of chamfer dimension r1 Remarks1. Neither oil hole nor grease nipple is provided for PHS with an inner ring bore diameter d of 4 mm or less. 　　　　　 For others, a grease nipple is provided on the body. 2. No grease is prepacked. Perform proper lubrication. 3. When a metric fine thread specification for inner ring bore deameter d of 8 mm to 14 mm is required, please contact IKO.　　　　　　　

Lubrication Type PILLOBALL Rod Ends Insert Type/With Female Thread

GW

BC

h1

d

rr

d d

d

dL

3

l5

ll

2

1

1

1

3

1

4

K



Mass (Ref.)

g


Cd

N


Cs

N


d

Note(1)　　 Minimum allowable value of chamfer dimension r1 Remarks1. Neither oil hole nor grease nipple is provided for POS with an inner ring bore diameter d of 4 mm or less. 　　　　　 For those with an inner ring bore diameter d of 5 to 6 mm, an oil hole is provided on the body. For others, a grease nipple is

provided on the body. 2. No grease is prepacked. Perform proper lubrication. 3. When a metric fine thread specification for inner ring bore deameter d of 8 mm to 14 mm is required, please contact IKO.　　　　　　　

POS(…A)

POS 3

POS 4

POS 5A

POS 6A

POS 8A

POS 10A

POS 12A

POS 14A

POS 16A

POS 18A

POS 20

POS 22

POS 25

POS 28

POS 30

35.0

48.1

512.5

619

832

1054

1285

14126

16185

18260

20340

22435

25650

28875

301 070

M 3×0.5

M 4×0.7

M 5×0.8

M 6×1

M 8×1.25

M10×1.5

M12×1.75

M14×2

M16×2

M18×1.5

M20×1.5

M22×1.5

M24×2

M27×2

M30×2

ThreadG d2

Ball dia.mm

(inch)C1 B d1 l2 h l1

12

14

16

18

22

26

30

34

38

42

46

50

60

66

70

4.5

5.3

6

6.75

9

10.5

12

13.5

15

16.5

18

20

22

25

25

6

7

8

9

12

14

16

19

21

23

25

28

31

35

37

5.2

6.5

7.7

9

10.4

12.9

15.4

16.9

19.4

21.9

24.4

25.8

29.6

32.3

34.8

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.6

0.6

0.6

7.938（ 516） 9.525（ 38）11.112（ 716）12.700（ 12）15.875（ 58）19.050（ 34）22.225（ 78）25.400（1 ）28.575（1 18）31.750（1 14）34.925（1 38）38.100（1 12）42.862（11116）47.625（1 78）50.800（2 ）

1 750

2 480

3 270

4 200

7 010

9 810

13 100

16 800

21 000

25 700

30 800

37 400

46 200

58 400

62 300

1 220

2 060

3 340

4 730

8 640

13 300

16 900

20 900

25 400

30 200

35 500

41 700

72 700

87 000

92 200

33

37

41

45

53

61

69

77

85

93

101

109

124

136

145

27

30

33

36

42

48

54

60

66

72

78

84

94

103

110

15

17

20

22

25

29

33

36

40

44

47

51

57

62

66

r1s min(1)

PILLOBALL

Lubrication Type PILLOBALL Rod Ends Insert Type/With Male Thread

h

d dl

l

dB

G

C

rr

2

1

1

1

1

1

2


Mass (Ref.)

g


Note(1)　 rs min stands for minimum allowable value of chamfer r. Remark No grease is prepacked. Perform proper lubrication.

PHSB

PHSB 2

PHSB 2.5

PHSB 3

PHSB 4

PHSB 5

PHSB 6

PHSB 7

PHSB 8

PHSB 10

PHSB 12

PHSB 16

6.8

11

14

23

36

59

82

132

191

286

998

3.175( .1250)

3.967( .1562)

4.826( .1900)

6.350( .2500)

7.938( .3125)

9.525( .3750)

11.112( .4375)

12.700( .5000)

15.875( .6250)

19.050( .7500)

25.400(1.0000)

-32UNC( .1380)

-32UNC( .1640)

-32UNF( .1900)

-28UNF( .2500)

-24UNF( .3125)

-24UNF( .3750)

-20UNF( .4375)

-20UNF( .5000)

-18UNF( .6250)

-16UNF( .7500)

-12UNF(1.2500)

11.91( .469)

14.27( .562)

15.88( .625)

19.05( .750)

22.23( .875)

25.40(1.000)

28.58(1.125)

33.32(1.312)

38.10(1.500)

44.45(1.750)

69.85(2.750)

4.75( .187)

5.56( .219)

6.35( .250)

7.14( .281)

8.74( .344)

10.31( .406)

11.10( .437)

12.70( .500)

14.27( .562)

17.45( .687)

25.40(1.000)

6.35( .250)

7.14( .281)

7.92( .312)

9.53( .375)

11.10( .437)

12.70( .500)

14.27( .562)

15.88( .625)

19.05( .750)

22.23( .875)

34.93(1.375)

4.75( .187)

6.32( .249)

7.77( .306)

9.02( .355)

11.35( .447)

13.13( .517)

14.88( .586)

17.73( .698)

21.31( .839)

24.84( .978)

32.23(1.269)

26.57(1.046)

29.36(1.156)

34.93(1.375)

42.85(1.687)

46.02(1.812)

53.98(2.125)

60.33(2.375)

70.64(2.781)

82.55(3.250)

95.25(3.750)

139.70(5.500)

4.75( .187)

4.75( .187)

4.75( .187)

4.75( .187)

4.75( .187)

6.35( .250)

6.35( .250)

6.35( .250)

7.92( .312)

7.92( .312)

11.07( .436)

20.62( .812)

22.23( .875)

26.97(1.062)

33.32(1.312)

34.93(1.375)

41.28(1.625)

46.02(1.812)

53.98(2.125)

63.50(2.500)

73.03(2.875)

104.78(4.125)

9.53( .375)

9.53( .375)

14.27( .562)

19.05( .750)

19.05( .750)

23.80( .937)

26.97(1.062)

30.15(1.187)

38.10(1.500)

44.45(1.750)

53.98(2.125)

6.35( .250)

7.14( .281)

7.92( .312)

9.53( .375)

11.10( .437)

14.27( .562)

15.88( .625)

19.05( .750)

22.23( .875)

25.40(1.000)

38.10(1.500)

6.35( .250)

7.14( .281)

7.92( .312)

9.53( .375)

11.10( .437)

14.27( .562)

15.88( .625)

19.05( .750)

22.23( .875)

25.40(1.000)

38.10(1.500)

7.92( .312)

8.74( .344)

10.31( .406)

11.89( .468)

12.70( .500)

17.45( .687)

19.05( .750)

22.23( .875)

25.40(1.000)

28.58(1.125)

44.45(1.750)

0.3( .012)

0.3( .012)

0.3( .012)

0.5( .020)

0.5( .020)

0.5( .020)

0.5( .020)

0.5( .020)

0.5( .020)

0.5( .020)

0.5( .020)

Inch series PILLOBALL Rod Ends Insert Type/With Female Thread

7.938（ 516）

9.525（ 38）

11.112（ 716）

13.097（ 3364）

15.875（ 58）

18.256（ 2332）

20.638（ 1316）

23.812（ 1516）

28.575（1 18）

33.338（1 516）

47.625（1 78）

1 850

2 600

3 460

4 590

6 800

9 230

11 200

14 800

20 000

28 500

59 300

5 840

8 210

9 090

13 200

16 500

21 600

26 100

36 200

39 300

55 000

86 800

dThread

Sclass 3B

DBall dia.mm

(inch)B B1 d1 L l L1 L2 W D1 D2 rsmin

(1)

Dynamic load

capacityCd

N

Static load

capacityCs

N

D

D1L 1

d 1

L 2

l

dL

D2

BB1

SW

rr

K


POSB

Inch series PILLOBALL Rod Ends


Mass(Ref.)

g


Note(1)　 rs min stands for minimum allowable value of chamfer r. Remark No grease is prepacked. Perform proper lubrication.

POSB 2

POSB 2.5

POSB 3

POSB 4

POSB 5

POSB 6

POSB 7

POSB 8

POSB 10

POSB 12

POSB 16

5.4

9.1

14

23

36

54

77

122

186

295

1 129

-32UNC( .1380)

-32UNC( .1640)

-32UNF( .1900)

-28UNF( .2500)

-24UNF( .3125)

-24UNF( .3750)

-20UNF( .4375)

-20UNF( .5000)

-18UNF( .6250)

-16UNF( .7500)

-12UNF(1.2500)

3.175( .1250)

3.967( .1562)

4.826( .1900)

6.350( .2500)

7.938( .3125)

9.525( .3750)

11.112( .4375)

12.700( .5000)

15.875( .6250)

19.050( .7500)

25.400(1.0000)

d

11.91( .469)

14.27( .562)

15.88( .625)

19.05( .750)

22.23( .875)

25.40(1.000)

28.58(1.125)

33.32(1.312)

38.10(1.500)

44.45(1.750)

69.85(2.750)

D

4.75( .187)

5.56( .219)

6.35( .250)

7.14( .281)

8.74( .344)

10.31( .406)

11.10( .437)

12.70( .500)

14.27( .562)

17.45( .687)

25.40(1.000)

B

6.35( .250)

7.14( .281)

7.92( .312)

9.53( .375)

11.10( .437)

12.70( .500)

14.27( .562)

15.88( .625)

19.05( .750)

22.23( .875)

34.93(1.375)

B1

4.75( .187)

6.32( .249)

7.77( .306)

9.02( .355)

11.35( .447)

13.13( .517)

14.88( .586)

17.73( .698)

21.31( .839)

24.84( .978)

32.23(1.269)

d1

29.77(1.172)

35.71(1.406)

39.70(1.563)

49.20(1.937)

58.72(2.312)

61.93(2.438)

68.28(2.688)

78.59(3.094)

85.73(3.375)

95.25(3.750)

139.70(5.500)

L

23.80( .937)

28.58(1.125)

31.75(1.250)

39.67(1.562)

47.63(1.875)

49.23(1.938)

53.98(2.125)

61.93(2.438)

66.68(2.625)

73.03(2.875)

104.78(4.125)

L1

12.70( .500)

15.88( .625)

19.05( .750)

25.40(1.000)

31.75(1.250)

31.75(1.250)

34.93(1.375)

38.10(1.500)

41.28(1.625)

44.45(1.750)

53.98(2.125)

L2

0.3( .012)

0.3( .012)

0.3( .012)

0.5( .020)

0.5( .020)

0.5( .020)

0.5( .020)

0.5( .020)

0.5( .020)

0.5( .020)

0.5( .020)

ThreadS

class 3A

7.938 （ 516）

9.525（ 38）

11.112（ 716）

13.097（ 3364）

15.875（ 58）

18.256（ 2332）

20.638（ 1316）

23.812（ 1516）

28.575（1 18）

33.338（1 516）

47.625（1 78）

Ball dia.mm

(inch)

1 850

2 600

3 460

4 590

6 800

9 230

11 200

14 800

20 000

28 500

59 300

Dynamic load

capacityCd

N

2 160

3 370

4 850

8 870

14 200

21 600

26 100

36 200

39 300

55 000

112 000

Static load

capacityCs

Nrs min(1)

PILLOBALL

Insert Type/With Male Thread

L 1

LL 2

D B

S

rr dd 1

B1

PHSA


PHSA 5

PHSA 6

PHSA 8

PHSA 10

PHSA 12

PHSA 14

PHSA 16

PHSA 18

PHSA 20

PHSA 22

Mass (Ref.)

g

17

25

45

70

105

155

190

290

400

500

5

6

8

10

12

14

16

18

20

22

17

19.5

24

28

32

36

40

45

49

54

6

6.75

9

10.5

12

13.5

15

16.5

18

20

M 5×0.8

M 6×1

M 8×1.25

M10×1.5

M12×1.75

M14×2

M16×2

M18×1.5

M20×1.5

M22×1.5

8

9

12

14

16

19

21

23

25

28

7.7

9

10.4

12.9

15.4

16.9

19.4

21.9

24.4

25.8

16

16

19

23

27

30

36

40

43

47

4

5

5

6.5

6.5

8

8

10

10

12

9

11

14

17

19

22

22

27

30

32

9

10

12.5

15

17.5

20

22

25

27.5

30

11

13

16

19

22

25

27

31

34

37

0.2

0.2

0.2

0.2

0.2

0.3

0.3

0.3

0.3

0.3

35.5

39.7

48

57

66

75

84

93.5

101.5

111

27

30

36

43

50

57

64

71

77

84


Cs

N

5 470

6 760

10 200

13 100

16 400

20 000

23 900

28 800

33 400

40 400

Ball dia.mm

(inch)

11.112（ 716）12.700（ 12）15.875（ 58）19.050（ 34）22.225（ 78）25.400（1 ）28.575（1 18）31.750（1 14）34.925（1 38）38.100（1 12）

dThread

G d2 C1 B d1 l4 h1 l3 l5 W d3 dL r1s min(1)


Note(1)　　 Minimum allowable value of chamfer dimension r1 Remarks1. A grease nipple is provided on the body. 2. No grease is prepacked. Perform proper lubrication. 3. When a metric fine thread specification for inner ring bore deameter d of 8 mm to 14 mm is required, please contact IKO.　　　　　　

Lubrication Type PILLOBALL Rod Ends Die-cast Type/With Female Thread

h

d

dL

l5

r

d

GW

BC

r

dl

l

2

1

1

1

1

1

4

3

d3

K


Note(1)　　 Minimum allowable value of chamfer dimension r1 Remarks1. Neither oil hole nor grease nipple is provided. 2. When a metric fine thread specification for inner ring bore deameter d of 8 mm to 14 mm is required, please contact IKO.

PHS … EC


PHS 3EC

PHS 4EC

PHS 5EC

PHS 6EC

PHS 8EC

PHS 10EC

PHS 12EC

PHS 14EC

PHS 16EC

PHS 18EC

PHS 20EC

PHS 22EC

Mass (Ref.)

g

5.7

11.9

16.5

25

43

72

107

160

210

295

380

490

3

4

5

6

8

10

12

14

16

18

20

22

12

14

16

18

22

26

30

34

38

42

46

50

4.5

5.3

6

6.75

9

10.5

12

13.5

15

16.5

18

20

M 3×0.5

M 4×0.7

M 5×0.8

M 6×1

M 8×1.25

M10×1.5

M12×1.75

M14×2

M16×2

M18×1.5

M20×1.5

M22×1.5

6

7

8

9

12

14

16

19

21

23

25

28

5.2

6.5

7.7

9

10.4

12.9

15.4

16.9

19.4

21.9

24.4

25.8

10

12

12.5

13.5

16

19.5

24

27

33

36

40

41

3

4

4

5

5

6.5

6.5

8

8

10

10

12

5.5

8

9

11

14

17

19

22

22

27

30

32

5

8

9

10

12.5

15

17.5

20

22

25

27.5

30

6.5

9.5

11

13

16

19

22

25

27

31

34

37

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

27

31

35

39

47

56

65

74

83

92

100

109

21

24

27

30

36

43

50

57

64

71

77

84


Cd

N


Cs

N

3 500

4 950

6 540

8 410

14 000

19 600

26 200

33 600

42 000

51 400

61 600

74 700

2 480

3 260

4 010

4 940

7 760

10 500

13 700

17 200

21 100

25 100

30 000

36 400

Ball dia.mm

(inch)

7.938（ 516） 9.525（ 38）11.112（ 716）12.700（ 12）15.875（ 58）19.050（ 34）22.225（ 78）25.400（1 ）28.575（1 18）31.750（1 14）34.925（1 38）38.100（1 12）

dThread

G d2 C1 B d1 l4 h1 l3 l5 W d3 dL r1s min(1)


PILLOBALL

Maintenance-free Type PILLOBALL Rod Ends With Female Thread

h

d

d

dL

l

r

d

GW

BC

r

dl

l

3

2

1

1

1

1

1

5

4

3

POS … EC

Note(1)　　 Minimum allowable value of chamfer dimension r1 Remarks1. Neither oil hole nor grease nipple is provided. 2. When a metric fine thread specification for inner ring bore deameter d of 8 mm to 14 mm is required, please contact IKO.


Mass (Ref.)

g


Cs

N


POS 3EC

POS 4EC

POS 5EC

POS 6EC

POS 8EC

POS 10EC

POS 12EC

POS 14EC

POS 16EC

POS 18EC

POS 20EC

POS 22EC

5.0

8.1

12.5

19

32

54

85

126

185

260

340

435

3 500

4 950

6 540

8 410

14 000

19 600

26 200

33 600

42 000

51 400

61 600

74 700

1 220

2 060

3 340

4 730

7 760

10 500

13 700

17 200

21 100

25 100

30 000

36 400


Cd

Nd

3

4

5

6

8

10

12

14

16

18

20

22

M 3×0.5

M 4×0.7

M 5×0.8

M 6×1

M 8×1.25

M10×1.5

M12×1.75

M14×2

M16×2

M18×1.5

M20×1.5

M22×1.5

ThreadG d2

Ball dia.mm

(inch)C1 B d1 l2 h l1

12

14

16

18

22

26

30

34

38

42

46

50

4.5

5.3

6

6.75

9

10.5

12

13.5

15

16.5

18

20

6

7

8

9

12

14

16

19

21

23

25

28

5.2

6.5

7.7

9

10.4

12.9

15.4

16.9

19.4

21.9

24.4

25.8

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

7.938（ 516）

9.525（ 38）

11.112（ 716）

12.700（ 12）

15.875（ 58）

19.050（ 34）

22.225（ 78）

25.400（1 ）

28.575（1 18）

31.750（1 14）

34.925（1 38）

38.100（1 12）

33

37

41

45

53

61

69

77

85

93

101

109

27

30

33

36

42

48

54

60

66

72

78

84

15

17

20

22

25

29

33

36

40

44

47

51

r1s min(1)

Maintenance-free Type PILLOBALL Rod Ends With Male Thread

h

d1 dl1

l2

d2

B

G

C1

r1

r1

K

K45 K46

L-Balls

L-Ball Dust Cover


Types

IKO L-Balls are self-aligning rod-ends consisting of a special zinc die-cast alloy body and a studded ball which has its axis at right angles to the body.They can perform tilting movement, oscillating move-ment and rotation with low torque, and transmit power smoothly due to uniform clearance between the slid-ing surfaces.Their superior wear resistance assures stable accura-cy for long periods of time, and maintenance is sim-ple. They are very economical bearings.For these reasons, they are widely used in link mech-anisms in automobiles, construction machinery, farm and packaging machines, etc.

Structures of L-Ball LHSA

Structure of L-Ball LHS

Body

Body

Body

Body

Bushing(Copper alloy)

Ball-stud

Ball-stud

Dust cover

Ball-stud

Ball-stud

Dust cover(Fixed to the body)

Bushing (Low carbon steel)

Bushing(Copper alloy)

and upwards

LHSA 5, 6

L-Balls are available in various types as shown in Table 1.

Table 1 Type of L-Balls

Type L-BallL-Ball dust

cover

Model code LHSA LHS PRC

L-Ball LHSAThese are compact rod-ends in which the spherical part of the ball-stud are held by the special zinc die-cast alloy body. There is a dust cover on the stud side and good quality lithium soap base grease is pre-packed. They can be run for long periods of time without re-lubrication and have excellent lubrication and anti-dust properties.As shown in the structural drawing, these rod-ends are classified into 3 types by size. In addition, the ball-studs of LHSA 10 and lower are formed in one solid body, but those of LHSA 12 and higher, which are used under large loads, have the stud friction-welded to a high precision steel ball to give greater resistance to wear.

L-Ball LHSThese rod-ends have a friction-welded ball-stud, and a special zinc die-cast alloy body which houses the spherical surface of the high precision steel ball. There is an almost complete contact across the slid-ing surfaces, and the uniform clearance guarantees a stable bearing life.An L-Ball dust cover can be attached to these rod-ends. If the rod-ends are lubricated with lithium soap

base grease, they have excellent lubrication and anti-dust properties and can run for long periods of time without re-lubrication.When the L-Ball LHS is delivered with a dust cover on request, lithium soap base grease is prepacked.

K


L-Ball Dust Cover PRCThis is for the L-Ball LHS series. It is made of special synthetic rubber which has excellent resistance to oil and ozone. The cover offers very effective dust pro-tection and prevents grease leakage.

Identification NumberThe identification number of L-Balls consists of a model code, a size and any supplemental codes as shown in the examples.

Model code Size

LHSA 8

Type


Example 1 (Female thread of the dody : In case of right-hand threaded)

Size of thread（M8）

Model code SizeSupplemental

code

LHSA 8 L

Left-handed thread

Example 2 (Female thread of the body : In case of left threaded)

Model code SizeSupplemental

code

LHS 8 D

Example 3 (when a dust cover PRC is attached to LHS)

With dust cover

AccuracyThe accuracy of L-Balls is shown in Table 2.

Table 2 Tolerance

Type Dimension symbol Tolerance

LHSA

LHS

r1

V

r1

V

± 0.5

0− 0.2（1）

± 0.4

h9

unit: mm

Note(1)　 This dimensional tolerance applies to LHSA 5 and higher.

LHSA LHS

V

r1

r1

V

1 Tightening depth　 It is recommended that the tightening depth of the

screw into the body is more than twice the nominal diameter of thread.

2 Allowable tilting angle 　 The allowable tilting angle is shown in Table 4.

Selection of L-BallsThe static load capacity and maximum operating load of L-Balls are determined in consideration of the strength of the ball stud and the body. Accordingly, L-Balls are selected on the basis of the static load

capacity Cs shown in the dimension table and the maximum operating load shown in Table 3.


The static load capacity Cs shown in the dimension table represents the allowable axial force F which is determined by the mechanical strength of the ball-stud at the section 'A' under the bending moment due

to the force F as illustrated in Fig. 1. If F increases beyond the static load capacity, deformation will begin at A, leading to breakage.

Maximum operating load

The strength of the body must also be taken into con-sideration when L-Balls are operated in a high-tem-perature or low-temperature atmosphere or receive repetitive loads of long duration or shock loads. A guideline for maximum operating load of L-Balls is shown in Table 3. When the fixing bolt in the main body is fixed and a load is applied in the direction of

F′, the bending stress in the fixing bolt must be taken into consideration.

LubricationLHSA is prepacked with lubricating grease ALVANIA GREASE S2 (Shell Lubricants Japan K.K.). LHS is not provided with prepacked grease. Perform proper lubrication.Operating LHS without lubrication will increase the wear of the sliding contact surface or cause seizure.

Operating Temperature RangeThe maximum allowable temperature for L-Balls is +80 .

Precautions for Use

Table 4 Allowable tilting angle

Nominal dia. mmV

LHSAα

LHSα

4 5 6 810121416182022

15171718191920−−−−

−15171819192020212021

unit: degree

Table 3 Maximum operating load





LHSA 4LHSA 5LHSA 6LHSA 8LHSA10LHSA10MLHSA12LHSA14−−

8401 1801 0801 9002 1702 1702 7903 540−−

LHS 5LHS 6LHS 8LHS10LHS12LHS14LHS16LHS18LHS20LHS22

8801 0801 6302 1002 6203 1903 8204 6105 3406 460

unit: N

Fig. 1

A

α α

V

F

F′

K


L-BALL

5.5

8

8

10

12

12

14

17

19.5

32.5

32.5

41.5

49

49

64

72

10

12

12

16

19

19

22

25

8

10

10

13

15

15

17.5

20

8

10

10

14

17

17

19

22

4

5

5

5

6.5

6.5

6.5

8

8

16

16

19

23

23

27

30

18

30

30

36

43

43

50

57

25

38.5

39.5

48

57

57

67

76

14

17

19

24

28

28

34

38

4

5

6

8

10

10

12

14

M 4×0.7

M 5×0.8

M 6×1

M 8×1.25

M10×1.25

M10×1.5

M12×1.75

M14×2

11

27

27

64

106

106

180

260


Mass (Ref.)

g S V D L L1 L2 l1 W1

14

17

17

19

22

W2 D1 D2 r P

LHSA 4

LHSA 5

LHSA 6

LHSA 8

LHSA 10

LHSA 10M

LHSA 12

LHSA 14


Thread

＊＊＊

＊＊Remarks1. The item marked ＊ is manufactured with a neck diameter of φ3.4. The item marked is manufactured with a diameter of φ5.5

instead of a width across flats. 2. Provided with prepacked grease.

880

1 180

1 670

4 380

7 400

7 400

9 900

14 600

8

11.112

11.112

15

19.05

19.05

22.225

25.4

5

10

10

12.5

17

17

20

22

7

13

13

17

21

21

30

33.5

球面外輪

シールド形r2

7

12

12

14.5

16

16

20

22.5

r1 r3

Ball dia.


Cs

N

LL1

L2

21

S

S

D

P 11

D1

V

W1

D2

D2

W1

W2

3

LHSA 4LHSA 5LHSA 6

LHSA 8LHSA 10LHSA 10MLHSA 12LHSA 14

K


Remark No grease is prepacked. Perform proper lubrication.


Mass (Ref.)

g S V D B L L1 L2 l1 W D1 D2 r P

LHS 5

LHS 6

LHS 8

LHS 10

LHS 12

LHS 14

LHS 16

LHS 18

LHS 20

LHS 22

22

32

60

102

160

227

300

445

580

765

M 5×0.8

M 6×1

M 8×1.25

M10×1.5

M12×1.75

M14×2

M16×2

M18×1.5

M20×1.5

M22×1.5

5

6

8

10

12

14

16

18

20

22

35.5

39.7

48

57

66

75

84

93.5

101.5

111

27

30

36

43

50

57

64

71

77

84

4

5

5

6.5

6.5

8

8

10

10

12

9

10

12.5

15

17.5

20

22

25

27.5

30

30.5

36.5

44

52.5

61

69

74

84

90.5

99

16

16

19

23

27

30

36

40

43

47

9

11

14

17

19

22

22

27

30

32

11

13

16

19

22

25

27

31

34

37

8

10

11

13

17

17

19

22

24

27

17

19.5

24

28

32

36

40

45

49

54

6

6.75

9

10.5

12

13.5

15

16.5

18

20


Thread

L-BALL

10

11.5

14.5

17

20

22.5

24.5

27.5

30

32.5

15

18.5

21.5

26

30

33.5

35.5

40.5

43

47.5

11

14

15

18

20

22

23

25

27

30

11.112

12.7

15.875

19.05

22.225

25.4

28.575

31.75

34.925

38.1

2 080

3 290

4 900

7 640

12 400

14 600

19 500

25 600

31 600

39 800

r1 r2 r3

Ball dia.


Cs

N

LHS

r

r

r

r

D

L

P S l

L

L

B S W

D

D

1

23

2

1

2

1

1

K

K54K53

L-BALL


X

PRC 5

PRC 6

PRC 8

PRC 10

PRC 12

PRC 14

PRC 16

PRC 18

PRC 20

PRC 22

20

22

27

31

36

40

44

49

54

59

Y

29

31

38.5

45.5

53

60

68

74.5

82

89.5

E

10

11

13.5

15.5

18

20

22

24.5

27

29.5

F

19

20

25

30

35

40

46

50

55

60

Z

16

19

24

27

32

36.5

40

46

50

53.5

G

8

9.5

12

14

16.5

19

20.5

23.5

25.5

27.5

H

8

9.5

12

13

15.5

17.5

19.5

22.5

24.5

26


PRC

L-Ball Dust Cover

X

Y

E F

GH

Z

1N=0.102kgf=0.2248lbs.1mm=0.03937inch

K

K55 K56

IKO Super Flexible Nozzle is a compact nozzle for use on a machine tool to supply and spray cutting oil exactly at the required positions. The angle of the nozzle can be changed easily and freely. Therefore, oil supply can be concentrated upon the working area, and cooling and lubrication can be performed effectively. As a result, cutting resistance is reduced and superior finish is obtained, achieving high machining accuracy. Also, tool life is longer. The Super Flexible Nozzle is used in many places such as at the spindle end of Machining Center and at the tool holder of N/C lathe.

The features of Super Flexible Nozzle are as follows. 1 A spherical bushing is incorporated to adjust the tilt-ing angle of nozzle easily. 2 The Super Flexible Nozzle is compact in size, and the design on parts around the spindle and tool can be made simple. 3 The nozzle length is short, and winding of cutting chips around the nozzle will not occur. 4 By using a number of Super Flexible Nozzles, cut-ting oil can be supplied and cutting chips can be removed more effectively. 5 The press fitting type and screw fitting type are available. The press fitting type is economical.

Structures of Super Flexible Nozzles

Body(Zinc die-cast alloy)

Body(Zinc die-cast alloy)

Nozzle

Body(Steel)

Nozzle

Hollow ball

Body(Steel)

Nozzle

Hollow ball

Hollow ball

Hollow ball

Metric thread

O-ring

Taper pipe thread

O-ring

[Without nozzle]

[With nozzle]


K


TypesSuper Flexible Nozzles shown in Table 1 are avail-able.

Model code Size

SNM 10 20


Type of nozzle

Dimension from shoulder surface to nozzle top:※（20mm）

Nozzle bore or thread size: （M10×1.25）

-

Table 1 Type of Super Flexible Nozzle

Type

Press fitting type

Screw fitting type

Without nozzle

With nozzle

With metric threads

With taper pipe threads

SNA

SNM

SNPT

Model code

Identification NumberThe identification number of Super Flexible Nozzle consists of a model code and a size. An example is shown as follows.

Precautions for UseWhen the press fitting type Super Flexible Nozzle is used, a φ 15 (H8) bore for fitting hole must be prepared and fitting is made from the 30°chamfered end of the outer body. In this case, the body portion should be pushed for press fitting.When the screw fitting type Super Flexible Nozzle is used and prevention of oil leakage from the fitting part is required, it is recommended to wind sealing tape on the thread portion or use rubber packing for the shoul-der face of the outer body.The direction of lubrication can be adjusted by insert-ing a screwdriver, etc. in the bore of the nozzle.

Special SpecificationsSuper Flexible Nozzles with special length are also available. In this case, specify the necessary nozzle length in units of 1 mm, but do not exceed the maxi-

mum length shown in the dimension table as "L". Super Flexible Nozzles with curved nozzle end or with special bore diameter are also available. In this case, please contact IKO by preparing a drawing or sketch with necessary specifications.

※In case of press fitting type without nozzle, this dimension is not indicated.

＋ 0.027　0

Press Fitting Type Without Nozzle

SNA

SNA


Allowable tilting angle

αdegree


d

Ball dia.

mm(inch)D L1 L2 C r

SNA 4

SNA 6

36

24

415 7 1 6 2

611.112（716）



d D L L1 L2 C r d1

SNA 3-L

SNA 4-L

3

415

6 15 32

6 16 407 1 6 2 6


αdegree

Ball dia.

mm(inch)

2411.112（716）

Press Fitting Type With Nozzle

SUPER FLEXIBLE NOZZLE

r

D d

CL1

L2

αα

30°

d (d1)

αα

rC

D

L1

L2

L

30°

K59

SUPER FLEXIBLE NOZZLE

SNM SNPT

Screw Fitting Type



d S L L1

SNM 10-L

SNPT 1/4-L

SNM 20-L

SNPT 3/8-L

SNM 24-L

SNPT 1/2-L

4

6

8

M10×1.25

PT 1/4

PT 3/8

PT 1/2

M20×1.5

M24×2.0

20 40 60

30 50 70

40 60 80

9

13

18

L2 d1

13 6

18 8

23 10

d2

6

10

12

B

17

24

32

(Ref.)

19.6

27.7

37

L3

10.5

15

19


αdegree

Ball dia.

mm(inch)

35

12.700（ 12）

19.050（ 34）

25.400（1 ）

Thread Width across flats

Width across corners

L1

L2

L3

L

S

B d2 d (d1 )

α

α

S

1N=0.102kgf=0.2248lbs.1mm=0.03937inch

Seals for Needle Roller BearingsCir-clips for Needle Roller BearingsNeedle Rollers

L

L1 L21N=0.102kgf=0.2248lbs.1mm=0.03937inch

FeaturesIKO Seals for Needle Roller Bearings have a low sectional height and consist of a sheet metal ring and special synthetic rubber. As these seals are manufactured to the same sec-tional height as IKO Needle Roller Bearings, grease leakage and the penetration of foreign particles can be effectively prevented by fitting them directly to the sides of combinable bearings shown in the dimension table. When fitting seals to needle roller bearings with inner ring, wide inner rings (see page H2) must be used, as shown in the mounting examples.

TypesSeals for Needle Roller Bearings are available as shown in Table1.

Identification NumberThe identification number of Seals for Needle Roller Bearings consists of a model code and dimensions. An example of an identification number is shown as follows.


DS 20 428


Shaft dia.（20mm）

Type of seal

Outside dia. of seal（28mm）

Width of seal（4mm）

AccuracyTolerances of Seals for Needle Roller Bearings are based on JIS B 2402-1.Tolerances of outside diameter and width are based on Tables 2 and 3, respectively.

Table 1 Seal type

Type Single lip Double lips

Structure

Model code OS DS Table 2 Tolerance of outside diameterNominal outside diameter

Over Incl. High Low

Tolerance

−30

50

80

30

50

80

120

＋ 0.09

＋ 0.11

＋ 0.14

＋ 0.17

＋ 0.04

＋ 0.05

＋ 0.06

＋ 0.08

unit: mm

Table 3 Tolerance of widthNominal size of width

Over Incl. High Low

Tolerance

−6

6

10

＋ 0.2

＋ 0.3

− 0.2

− 0.3

unit: mm

Metal ring

Lip

Metal ring

Main lipSecondary lip

MountingWhen inserting the shaft, damage to the lip should be prevented by chamfering the end of the shaft, as shown in the upper part of Fig. 1. When this cannot be performed, a mounting bushing should be used, as shown in the lower part of Fig.1. When press fitting the seal to the housing, do not strike it directly, but fit it gently, using a suitable tool. To prevent early wear and heat generation at the seal surface, it is necessary to thickly coat the tip of the lip for the OS type, or to fill the space between the two lips for the DS type, with bearing grease.

Precautions for Use

Fig.1

30°

3mm

1 For the single lip OS type, the lip has to face inward when using the seal to prevent grease leakage, and outward to prevent the penetration of foreign particles. The DS type of double-lips is effective for prevention of grease leakage and dust penetration. However, when the main purpose is to prevent grease leakage, the main lip should face inward, and when used main-ly to prevent dust penetration, it should face outward. 2 The permissible temperature range is -20 〜+100 . For use at higher or lower temperatures, a special seal is required. Please contact IKO for further infor-mation. 3 The limiting peripheral speed of shaft depends on the conditions of use, but is normally 6 to 8 m/s. Double this speed is possible if the conditions (lubri-cation, temperature, shaft finish, etc.) are good.


Secondary lip Main lip

Bushing for mounting

L


Shaft dia.

mm Single lip Double lips d1 D bTA … Z YTTLA … Z YTL

RNA TRTAF GTR RNAF NAX

NBX

Identification number Boundary dimensions　mm

Combinable bearings

6

7

8

9

10

OS 6102.5

OS 7112.5

OS 8123

OS 8153

OS 9133

OS 9163

OS 10143

OS 10173

RNA 496TAF 81512TAF 81516

TAF 91612TAF 91616

TAF 101712TAF 101716

RNAF 81510

RNAF 101710

6

7

8

8

9

9

10

10

10

11

12

15

13

16

14

17

2.5

2.5

3

3

3

3

3

3

TLA 69Z

TLA 79Z

TLA 810Z

TA 810ZTA 815ZTA 820ZYT 810

TLA 910ZTLA 912Z

TA 912ZTA 916ZYT 912


TA 1010ZTA 1012ZTA 1015ZTA 1020Z

SEALS FOR NEEDLE ROLLER BEARINGS


D

d

b

1

D

d

b

1

OS DS

Shaft dia.



NBX


Combinable bearings

12

13

14

15

OS 12163

OS 12183

OS 12193

OS 13193

OS 14203

OS 14223

OS 15213

OS 15223

OS 15235

DS 14203

DS 14223

DS 15213

DS 15223

DS 15235

12

12

12

13

14

14

15

15

15

16

18

19

19

20

22

21

22

23

3

3

3

3

3

3

3

3

5

TLA 1210ZYTL 1210

TLA 1212Z

TA 1212ZTA 1215ZTA 1220ZTA 1225ZYT 1212

TLA 1312Z

TLA 1412ZTLA 1416Z

TA 1416ZTA 1420Z



TAF 121912TAF 121916

RNA 4900TAF 142216TAF 142220

TAF 152316TAF 152320

RNAF 142213RNAFW 142220

RNAF 152313RNAFW 152320

(Sh

aft

dia

.)

(Sh

aft

dia

.)

L


Shaft dia.



NBX


Combinable bearings

16

17

OS 16223

OS 16243

OS 16285

OS 17233

OS 17243

OS 17253

DS 16223

DS 16243

DS 16285

DS 17233

DS 17243

DS 17253

16

16

16

17

17

17

22

24

28

23

24

25

3

3

5

3

3

3


TA 1616ZTA 1620Z

TLA 1712Z

TA 1715ZTA 1720ZTA 1725ZYT 1715YT 1725

RNA 4901RNA 6901TAF 162416TAF 162420

TAF 172516TAF 172520

RNAF 162413RNAFW 162420

RNAF 162812

RNAF 172513RNAFW 172520



Shaft dia.



NBX


Combinable bearings

18

19

OS 18243

OS 18253

OS 18264

OS 19274

DS 18243

DS 18253

DS 18264

18

18

18

19

24

25

26

27

3

3

4

4

TLA 1812ZTLA 1816Z

TA 1813ZTA 1815ZTA 1817ZTA 1819ZTA 1820ZTA 1825Z

TA 1916ZTA 1920Z

RNA 49/14TAF 182616TAF 182620

TAF 192716TAF 192720

RNAF 182613RNAFW 182620

OS DS

D

d

b

1

D

d

b

1

(Sh

aft

dia

.)

(Sh

aft

dia

.)

L




Shaft dia.



NBX


Combinable bearings

20

21

TLA 2012ZTLA 2016ZTLA 2020ZTLA 2030Z

TA 2015ZTA 2020ZTA 2025ZTA 2030ZYT 2015YT 2025

TA 202820ZYT 202820

TA 2116ZTA 2120ZYT 2116YT 2120

RNA 4902RNA 6902TAF 202816TAF 202820

TAF 212916TAF 212920

RNAF 202813RNAFW 202826

RNAF 203212RNAFW 203224

RNAF 203212RNAFW 203224

NAX 2030NBX 2030

26

27

28

30

32

32

29

4

4

4

4

4

6

4

20

20

20

20

20

20

21

OS 20264

OS 20274

OS 20284

OS 20304

OS 20324

OS 20326

OS 21294

DS 20264

DS 20274

DS 20284

DS 20304

DS 20324

DS 20326

DS 21294

Shaft dia.



NBX


Combinable bearings

22

24

OS 22284

OS 22294

OS 22304

OS 24314

OS 24324

DS 22284

DS 22304

DS 24314

DS 24324

22

22

22

24

24

28

29

30

31

32

4

4

4

4

4



TA 223016ZTA 223020ZYT 223016YT 223020

TA 2420ZTA 2428ZYT 2428

TA 243216ZTA 243220ZYT 243216YT 243220

RNA 4903RNA 6903TAF 223016TAF 223020

TAF 243216TAF 243220

RNAF 223013RNAFW 223026

OS DS

D

d

b

1

D

d

b

1

(Sh

aft

dia

.)

(Sh

aft

dia

.)

L


Shaft dia.



NBX


Combinable bearings

25

OS 25324

OS 25334

OS 25356

OS 25376

OS 26344

DS 25324

DS 25334

DS 25356

DS 25376

DS 26344

25

25

25

25

26

32

33

35

37

34

4

4

6

6

4

TLA 2512ZTLA 2516ZTLA 2520ZTLA 2526ZTLAW 2538ZYTL 2526

TA 2510ZTA 2515ZTA 2520ZTA 2525ZTA 2530ZYT 2510YT 2515YT 2520YT 2525

TA 2616ZTA 2620ZYT 2616YT 2620

TAF 253316TAF 253320

RNA 4904RNA 6904

TAF 263416TAF 263420

RNAF 253517RNAFW 253526

RNAF 253716RNAFW 253732

NAX 2530NBX 2530

26



Shaft dia.



NBX


Combinable bearings

28

29

OS 28354

OS 28374

OS 28396

OS 28406

OS 29384

DS 28354

DS 28374

DS 28396

DS 28406

DS 29384

28

28

28

28

29

35

37

39

40

38

4

4

6

6

4

TLA 2816ZTLA 2820Z

TA 2820ZTA 2830ZYT 2820

TA 2920ZTA 2930ZYT 2920

TAF 283720TAF 283730

RNA 49/22RNA 69/22

TAF 293820TAF 293830

RNAF 284016RNAFW 284032

OS DS

D

d

b

1

D

d

b

1

(Sh

aft

dia

.)

(Sh

aft

dia

.)

L



Shaft dia.



NBX


Combinable bearings

30

32

OS 30374

OS 30404

OS 30426

OS 32424

OS 32456

DS 30374

DS 30404

DS 30426

DS 32424

DS 32456

30

30

30

32

32

37

40

42

42

45

4

4

6

4

6

TLA 3012ZTLA 3016ZTLA 3018ZTLA 3020ZTLA 3026ZTLAW 3038Z


TA 3220ZTA 3230ZYT 3220

TAF 304020TAF 304030

RNA 4905RNA 6905

TAF 324220TAF 324230

RNA 49/28RNA 69/28GTR 324530

RNAF 304017RNAFW 304026

RNAF 304216RNAFW 304232

NAX 3030NBX 3030


Shaft dia.



NBX


Combinable bearings

35

37

38

OS 35424

OS 35454

OS 35476

OS 37474

OS 38484

OS 38506

DS 35424

DS 35454

DS 35476

DS 37474

DS 38484

DS 38506

35

35

35

37

38

38

42

45

47

47

48

50

4

4

6

4

4

6



TA 3720ZTA 3730ZYT 3720

TA 3815ZTA 3820ZTA 3825ZTA 3830ZTAW 3845Z

TAF 354520TAF 354530

RNA 4906RNA 6906

TAF 374720TAF 374730

TAF 384820TAF 384830

RNAF 354517RNAFW 354526

RNAF 354716RNAFW 354732

NAX 3530NBX 3530

OS DS

D

d

b

1

D

d

b

1

(Sh

aft

dia

.)

(Sh

aft

dia

.)

L


Shaft dia.



NBX


Combinable bearings

40

42

OS 40474

OS 40504

OS 40526

OS 40556

OS 42557

DS 40474

DS 40504

DS 40526

DS 40556

DS 42557

40

40

40

40

42

47

50

52

55

55

4

4

6

6

7


TA 4015ZTA 4020ZTA 4025ZTA 4030ZTA 4040ZYT 4015YT 4025

TAF 405020TAF 405030

RNA 49/32RNA 69/32

TR 405520GTR 405520

RNA 4907RNA 6907

RNAF 405017RNAFW 405034

RNAF 405520RNAFW 405540

NAX 4032NBX 4032



Shaft dia.



NBX


Combinable bearings

45

48

50

OS 45524

OS 45554

OS 45627

OS 48627

OS 50584

OS 50624

OS 50657

DS 45524

DS 45554

DS 45627

DS 48627

DS 50584

DS 50624

DS 50657

45

45

45

48

50

50

50

52

55

62

62

58

62

65

4

4

7

7

4

4

7

TLA 4516ZTLA 4520Z

TA 4520ZTA 4525ZTA 4530ZTA 4540ZYT 4520YT 4525

TLA 5020ZTLA 5025Z


TAF 455520TAF 455530

RNA 4908RNA 6908TR 486230GTR 486230

TAF 506225TAF 506235

RNA 49/42

RNAF 455517RNAFW 455534

RNAF 456220RNAFW 456240

RNAF 506220RNAFW 506240

RNAF 506520RNAFW 506540

NAX 5035NBX 5035

OS DS

D

d

b

1

D

d

b

1

(Sh

aft

dia

.)

(Sh

aft

dia

.)

L


Shaft dia.



NBX


Combinable bearings

52

55

58

60

62

63

OS 52687

OS 55674

OS 55687

OS 55727

OS 58727

OS 60724

OS 60787

OS 62744

OS 63807

DS 52687

DS 55674

DS 55687

DS 58727

DS 60724

DS 60787

DS 62744

DS 63807

52

55

55

55

58

60

60

62

63

68

67

68

72

72

72

78

74

80

7

4

7

7

7

4

7

4

7

TA 5520ZTA 5525ZTA 5530ZTA 5540ZTAW 5545ZTAW 5550Z

TA 6025ZTA 6030ZTA 6040ZTAW 6045ZTAW 6050Z

TA 6212Z

RNA 4909RNA 6909

TAF 556825TAF 556835

RNA 4910RNA 6910

TAF 607225TAF 607235

RNA 4911RNA 6911

RNAF 556820RNAFW 556840

RNAF 557220RNAFW 557240

RNAF 607820RNAFW 607840

NAX 6040NBX 6040



Shaft dia.



NBX


Combinable bearings

65

68

70

72

OS 65774

OS 65857

OS 68857

OS 70824

OS 70907

OS 72907

DS 65774

DS 65857

DS 68857

DS 70824

DS 70907

DS 72907

65

65

68

70

70

72

77

85

85

82

90

90

4

7

7

4

7

7

TA 6525ZTA 6530ZTAW 6545ZTAW 6550Z

TA 7025ZTA 7030ZTA 7040ZTAW 7050ZYT 7025YT 7030YT 7040

RNA 4912RNA 6912

RNA 4913RNA 6913

RNAF 658530RNAFW 658560

RNAF 709030RNAFW 709060

OS DS

D

d

b

1

D

d

b

1

(Sh

aft

dia

.)

(Sh

aft

dia

.)

L


FeaturesIKO Cir-clips for Needle Roller Bearings have been specially designed for needle roller bearings on which, in many cases, generally available Cir-clips cannot be used. They have a low sectional height and are very rigid. They are made of spring steel. There are Cir-clips for shafts and for bores, and they are used for positioning to prevent bearing movement in the axial direction.

TypesCir-clips for Needle Roller Bearings are available as shown in Table. 1.

Identification numberThe identification number of Cir-clips consists of a model code and a size as shown below.

Model code Size

WR 20


Shaft dia.（20mm）

Example 1

Type of Cir-clip

Model code Size

AR 35

Bore dia.（35mm）

Example 2

Type of Cir-clip

Table 1 Type of Cir-clip

Type For shaft For bore

Shape

Model code WR AR

　m

in-1

　mm

700006000050000

40000

30000

20000

10000

800070006000

5000

4000

3000

2000

1000

800700600500

400

300

200

10020 40 60 80 100 120 140 160 180

Fig.1 Allowable rotational speed

Allowable Rotational SpeedCir-clips for Needle Roller Bearings are fixed in the groove with a certain amount of pressure on the bot-tom of the groove. In the case of Cir-clips for shaft WR type, the centrifugal force causes a decrease in the gripping pressure. Therefore, when using them at high rotational speeds, it is necessary to first check the allowable rotational speed shown in Fig.1.

MountingThe mounting dimensions for Cir-clips for Needle Roller Bearings are shown in the dimension table. When using these Cir-clips to restrict the movement of the needle roller cage in the axial direction, it is rec-ommended that a spacer be used between the Cir-clip and the cage. Spacers are not required at low rotational speeds. When it is difficult to reach Cir-clips with dismounting tools and disassembly is difficult, or when the fre-quency of dismounting is high, it is necessary to con-sider the use of a retaining ring (JIS B 2804), although they have a higher sectional height.

Allo

wab

le r

ota

tio

nal

sp

eed

Shaft dia.

L




WR 4WR 5WR 6WR 7WR 8WR 9WR 10WR 11WR 12WR 13WR 14WR 15WR 16WR 17WR 18WR 19WR 20WR 21WR 22WR 23WR 24WR 25WR 26WR 28WR 29WR 30WR 32WR 35WR 36WR 37WR 38WR 40

4 5 6 7 8 91011121314151617181920212223242526282930323536373840

3.7 4.7 5.6 6.5 7.4 8.4 9.410.211.212.113.11415161717.918.719.720.721.722.523.524.526.527.528.530.233.234.235.236.237.8

0.811.11.21.31.31.31.31.31.31.51.751.751.751.751.751.751.751.751.751.751.751.752.32.32.32.32.32.32.32.32.3

0.50.50.70.71111111.21.21.21.21.21.21.21.21.21.21.21.21.21.51.51.51.51.51.51.51.51.5

3.8 4.8 5.7 6.7 7.6 8.6 9.610.511.512.513.514.415.416.417.418.419.220.221.222.223242527282930.833.834.835.836.838.5

　0−0.09

　0−0.11

　0−0.13

　0−0.16

Groove dia.

Tolerance

Shaft dia.

D D3(Max.)

e f D1



WR 42WR 43WR 45WR 47WR 50WR 52WR 55WR 60WR 63WR 65WR 68WR 70WR 75WR 80WR 82WR 85WR 90WR 95WR 100WR 105WR 110WR 115WR 120WR 125WR 130WR 135WR 140WR 145WR 150WR 155WR 160WR 165

424345475052556063656870758082859095

100105110115120125130135140145150155160165

39.840.842.844.847.849.852.657.660.662.665.467.472.477.479.382879297

101.7106.7111.7116.7121.7126.7131.6136.6141.6146.6151.6156.6161.6

2.32.32.32.32.32.32.32.32.32.32.82.82.82.83.43.43.43.43.43.43.43.43.43.43.44444444

1.51.51.51.51.51.51.51.51.51.522222.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.5

40.541.543.545.548.550.553.558.561.563.566.268.273.278.280.283889398

102.7107.7112.7117.7122.7127.7132.4137.4142.4147.4152.4157.4162.4

　0−0.16

　0−0.19

　0−0.22

　0−0.25

Groove dia.

Tolerance

Shaft dia.

D D3(Max.)

e f D1

For Shaft

CIR-CLIPS FOR NEEDLE ROLLER BEARINGS


WR



WR 170WR 175WR 180WR 185WR 190WR 195WR 200WR 210WR 220WR 230WR 240WR 260WR 265WR 270WR 280WR 285WR 300WR 305WR 320WR 330WR 340WR 350WR 360WR 370WR 390

170175180185190195200210220230240260265270280285300305320330340350360370390

166.6171.6175.6180.6185.6190.6195.6205.6215.6225.6235.6253258263273278293298313323333343353363383

445555555557.57.57.57.57.57.57.57.57.57.57.57.57.57.5

2.52.533333333344444444444444

167.4172.4177182187192197207217227237255260265275280295300315325335345355365385

　0−0.25

　0−0.32

　0−0.29

　0−0.36

Groove dia.

Tolerance

Shaft dia.

D D3(Max.)

e f D1

e

Df

60°

3

m

m = f +0.1mm(min.)

D D1

L




AR 7AR 8AR 9AR 10AR 11AR 12AR 13AR 14AR 15AR 16AR 17AR 18AR 19AR 20AR 21AR 22AR 23AR 24AR 25AR 26AR 27AR 28AR 29AR 30AR 31AR 32AR 33AR 34AR 35AR 37AR 38AR 39

789

1011121314151617181920212223242526272829303132333435373839

7.5 8.5 9.510.611.612.713.814.815.816.817.818.919.92122232425.226.227.228.229.230.231.432.433.434.435.436.438.839.840.8

111.11.21.31.31.31.31.31.61.61.751.751.751.751.751.751.751.751.751.751.751.752.32.32.32.32.32.32.32.32.3

0.80.80.80.8111111.21.21.21.21.21.21.21.21.21.21.21.21.21.21.51.51.51.51.51.51.51.51.5

7.3 8.3 9.310.411.412.413.514.515.516.517.518.519.620.621.622.623.624.825.826.827.828.829.831323334353638.239.240.2

＋0.09　0

＋0.11　0

＋0.13　0

＋0.16　0

Groove dia.

Tolerance

Bore dia.

D D3(Min.)

e f D1




4042434445474850525355575860626568707273757678808182838586889092

41.843.844.845.846.848.849.851.854.355.357.359.360.362.364.367.370.372.374.675.677.678.680.682.683.684.685.687.688.6919395

2.32.32.32.32.32.32.32.32.32.32.32.32.32.32.32.32.32.32.82.82.82.82.82.82.82.82.82.82.83.43.43.4

1.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.51.5222222222222.52.52.5

41.243.244.245.246.248.249.251.253.554.556.558.559.561.563.566.569.571.573.874.876.877.879.881.882.883.884.886.887.8909294

＋0.16　0

＋0.19　0

＋0.22　0

Groove dia.

Tolerance

Bore dia.

D D3(Min.)

e f D1

For Bore

CIR-CLIPS FOR NEEDLE ROLLER BEARINGS

Bore dia. 7− 440mm

AR




93959798

100102103105107108110112113115117118120123125127130133135137140143145150153160163165

96 98100101103105.3106.3108.3110.3111.3113.3115.3116.3118.3120.3121.3123.3126.3128.3130.3133.3136.3138.3140.3143.6146.6148.6153.6156.6163.6166.6168.6

3.43.43.43.43.43.43.43.43.43.43.43.43.43.43.43.43.43.43.43.43.43.43.43.444444444

2.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.52.5

95 97 99100102104.3105.3107.3109.3110.3112.3114.3115.3117.3119.3120.3122.3125.3127.3129.3132.3135.3137.3139.3142.6145.6147.6152.6155.6162.6165.6167.6

＋0.22　0

＋0.25　0

Groove dia.

Tolerance

Bore dia.

D D3(Min.)

e f D1



AR 170AR 173AR 175AR 180AR 183AR 190AR 195AR 200AR 205AR 210AR 215AR 220AR 225AR 230AR 235AR 240AR 245AR 250AR 260AR 270AR 280AR 300AR 320AR 325AR 355AR 375AR 395AR 415AR 420AR 440

170173175180183190195200205210215220225230235240245250260270280300320325355375395415420440

173.6176.6178.6183.6186.6194.5199.5204.5209.5214.5219.5224.5229.5234.5239.5244.5249.5254.5267277287307327332362382402422427447

4444455555555555557.57.57.57.57.57.57.57.57.57.57.57.5

2.52.52.52.52.53333333333333444444444444

172.6175.6177.6182.6185.6193198203208213218223228233238243248253265275285305325330360380400420425445

＋0.25　0

＋0.29　0

＋0.32　0

＋0.4　0

＋0.36　0

Groove dia.

Tolerance

Bore dia.

D D3(Min.)

e f D1

f

e

D

90°

3

m

m = f + 0.1mm(min.)

D D1

L


FeaturesIKO Needle Rollers are made of high carbon chromi-um bearing steel. They are rigid and highly accurate and are finished to a hardness of 58HRC or more (See Table 1.) and a surface roughness of 0.1 μmRa or less.These needle rollers are widely used as rolling ele-ments for bearings, and also as pins and shafts.Please contact IKO, if Needle Rollers made of stain-less steel are required.

End ShapesNeedle Rollers come in spherical and flat end shapes, as shown in Table 2. Please contact IKO, if other shapes are required.

AccuracyThe dimensional accuracy of Needle Rollers conforms to JIS B 1506 (Rolling bearings-Rollers), and is shown in Table 3. The selective classification for the mean diameter tol-erance is shown in Table 4. The selective classifica-tion rollers according to Table 4 can be provided as requested.

Table 2 Shapes of ends

Type Spherical end Flat end

Shapes

Symbol A F

Table 1 Hardness

Nominal diameterDw mm

Over Incl. HRC HV

Hardness

−3

3

−(60〜 67)58〜 66

697〜 900

(653〜 865)Remarks1.　 Hardness is flat surface hardness. 2.　 The values in parentheses are converted values for

reference.

Table 4 Classification of needle rollers

Classification symbol Tolerance for mean dia.

C 3

B 2

B 4

B 6

B 8

B10

　0〜− 3　0〜− 2− 2〜− 4− 4〜− 6− 6〜− 8− 8〜− 10

unit: μ m

Table 3 Dimensional accuracy of needle rollers

Class

Diameter varia-tion in a single

radial plane（1）VDwp

(Max.)

Circularity（1）

∆R(Max.)

Gauge lot diameter variation（1）

VDwL(Max.)

Deviation of a single

length（2）∆Lws

2

3

5

1

1.5

2

1

1.5

2.5

2

3

5

h13

h13

h13

unit: μ m

Notes(1)　 Applicable to the measurement at the center of roller length

(2)　 Tolerance is based on the classification according to the nominal length Lw.

Remark 　 Any measured diameter along the total length of roller must not be larger than the actual maximum diameter at the center of roller length by the amount exceeding the values given below.

　　　　　0.5 μ m for Class 2　　　　　0.8 μ m for Class 3　　　　　 1 μ m for Class 5

Use as Full-complement BearingsFor normal rotation, Needle Roller Bearings with cage are most suitable, but for low rotational speeds and for oscillating movement, full-complement bearings are also used. If Needle Rollers are combined with a shaft and a housing which have been hardened and ground to form a suitable raceway surface, the combined assembly can be used as a full-complement bearing which has a large load capacity and a low sectional height. (See page A44, Design of shaft and housing.)Normally in this case, the radial clearance is made a little larger than that of a bearing with cage and the circumferential clearance is made to be approximately 1/10 of the diameter of needle rollers. When the bearing is used under severe conditions, please con-tact IKO for further information.

L25

Remark　For the names of the needle rollers, nominal dimensions are used. Needle Rollers other than those shown in the dimension table can also be manufactured. Please contact IKO for further information.

Nominal dimensions　mm

1

1.5

2

2.5

3

5.8 6.8 7.8 9.8

5.8 6.8 7.8 9.811.813.8

6.8 7.8 9.811.813.815.817.819.8

7.8 9.811.813.815.817.819.821.823.8

9.811.813.815.817.819.821.823.825.827.829.8

0.030.040.050.06

0.080.090.10.130.160.18

0.160.190.230.280.330.380.420.47

0.290.360.440.510.590.660.730.810.88

0.520.630.740.840.951.061.161.271.381.481.59

LwDw

Mass (Ref.)

g


3.5

4

4.5

11.813.815.817.819.821.823.825.827.829.831.834.8

11.813.815.817.819.821.823.825.827.829.831.834.837.839.8

17.819.821.823.825.829.831.834.837.839.844.8

0.8611.151.291.441.581.731.882.12.22.32.5

1.121.311.51.691.882.12.32.52.62.833.33.63.8

2.12.42.62.93.13.63.84.24.54.85.4

LwDw

Mass (Ref.)

g


5

6

15.817.819.821.823.825.827.829.831.834.837.839.849.8

17.819.821.823.825.827.829.834.839.849.859.8

2.3 2.6 2.9 3.2 3.5 3.8 4.1 4.4 4.7 5.2 5.6 5.9 7.4

3.9 4.3 4.8 5.2 5.5 6 6.4 7.5 8.610.813

LwDw

Mass (Ref.)

g

Needle Rollers

Roller dia. 1− 6mm

Lw

Dw

M33Miscellaneous Tables

M

M33 M34

Conversion Table of Units

Comparison table between SI units (system of international units), CGS units and gravitational system of units

Item

System of units

SI units

CGS units

Grav. units

mcmm

kgg

kgf･s2/m

sss

m/s2

Galm/s2

Ndynkgf

Padyn/cm2

kgf/m2

Padyn/cm2

kgf/m2

Length Mass Time Acceleration Force Stress Pressure

Conversion rates into SI units

Item Unit name Symbol Conversion rate into SI SI unit name Symbol

Frequency and number of oscillations per time

Rotational speed

Angular velocity

Acceleration

Force

Moment of force

Stress and pressure

Angle

Length

Area

Volume

Mass

Time

Velocity

Degree

Minute

Second

Meter

Micronmeter

Angstrom

X-ray unit

Nautical mile

Square meter

Are

Hectare

Cubic meter

Liter

Kilogram

Ton

Atomic mass unit

Second

Minute

Hour

Day

Meter per second

Knot

Cycle

Rotation per minute

Radian per second

Meter per square second

G

Kilogram force

Ton force

Dyne

Kilogram force-meter

Kilogram force per square meter

Kilogram force per square centimeter

Kilogram force per square millimeter

Radian

Meter

Square meter

Cubic meter

Kilogram

Second

Meter per second

Hertz

Per second

Radian per second

Meter per square second

Newton

Newton-meter

Pascal

°’”

mµÅ

n mile

m2

aha

m3

l, L

kgtu

sminhd

m/skn

s-1

min-1

rad/s

m/s2

G

kgftf

dyn

kgf･mkgf/m2

kgf/cm2

kgf/mm2

rad

m

m2

m3

kg

s

m/s

Hz

s-1

rad/s

m/s2

N

N･m

Pa

π/180π/10 800π/648 000

110-6

10-10

≈1.002 08×10-13

1852

1102

104

110-3

1103

≈1.660 57×10-27

1603 60086 400

11 852/3 600

1

1/60

1

19.806 65

9.806 659 806.6510-5

9.806 65

9.806 659.806 65×104

9.806 65×106

Werg/s

kgf･m/s

Jerg

kgf･m

K°C°C

Pa･sP

kgf･s/m2

m2/sSt

m2/s

WbMx—

TGs—

A/mOe—

Kinematic viscosityViscosityTemperaturePowerEnergy Magnetic ux Magnetic ux density Magnetic eld intensity

Item Unit name Symbol Conversion rate into SI SI unit name Symbol

Power

Viscosity

Kinematic viscosity　

Temperature

Radioactivity

Exposure dose

Absorbed dose

Dose equivalent

Magnetic ux

Magnetic ux density

Magnetic eld intensity

Quantity of electricity

Electric potential difference

Electrostatic capacity

(Electric) resistance

(Electric) conductance

Inductance

Current

Pressure

Energy

Hydro-column meter

Mercurial column millimeter

Torr

Atmosphere

Bar

Erg

IT calorie

Kilogram force - meter

Kilowatt hour

Horse power hour (French)

Electron volt

Watt

Horse power (French)

Kilogram force -meter per second

Poise

Centipoise

Kilogram force-second per square meter

Stokes

Centistokes

Degree

Curie

Roentgen

Rad

Rem

Maxwell

Gamma

Gauss

Oersted

Coulomb

Volt

Farad

Ohm

Siemens

Henry

Ampere

Pascal

Joule

Watt

Pascal-second

Square meter per second

Kelvin

Becquerel

Coulomb per kilogram

Gray

Sievert

Weber

Tesla

Ampere per meter

Coulomb

Volt

Farad

Ohm

Siemens

Henry

Ampere

mH2OmmHgTorratmbar

ergcalIT

kgf･mkW･hPS･h

eV

WPS

kgf･m/s

PcP

kgf･s/m2

StcSt

°C

CiR

radrem

Mx

γGs

Oe

CVFΩSHA

Pa

J

W

Pa･s

m2/s

K

BqC/kgGySv

Wb

T

A/m

CVFΩSHA

9 806.65101 325/760101 325/760101 325105

10-7

4.186 89.806 653.600×106

≈2.647 79×106

≈1.602 19×10-19

1≈735.59.806 65

10-1

10-3

9.806 65

10-4

10-6

＋273.15

3.7×1010

2.58×10-4

10-2

10-2

10-8

10-9

10-4

103/4π1111111

M

M35 M36

Inch-mm Conversion Table

1 / 64”1 / 32”3 / 64”1 / 16”

5 / 64”3 / 32”7 / 64”1 / 8”

9 / 64”5 / 32”

11 / 64”3 / 16”

13 / 64”7 / 32”

15 / 64”1 / 4”

17 / 64”9 / 32”

19 / 64”5 / 16”

21 / 64”11 / 32”23 / 64”

3 / 8”

25 / 64”13 / 32”27 / 64”

7 / 16”

29 / 64”15 / 32”31 / 64”

1 / 2”

33 / 64”17 / 32”35 / 64”

9 / 16”

37 / 64”19 / 32”39 / 64”

5 / 8”

41 / 64”21 / 32”43 / 64”11 / 16”

45 / 64”23 / 32”47 / 64”

3 / 4”

49 / 64”25 / 32”51 / 64”13 / 16”

53 / 64”27 / 32”55 / 64”

7 / 8”

57 / 64”29 / 32”59 / 64”15 / 16”

61 / 64”31 / 32”63 / 64”

00.0156250.0312500.0468750.062500

0.0781250.0937500.1093750.125000

0.1406250.1562500.1718750.187500

0.2031250.2187500.2343750.250000

0.2656250.2812500.2968750.312500

0.3281250.3437500.3593750.375000

0.3906250.4062500.4218750.437500

0.4531250.4687500.4843750.500000

0.3970.7941.1911.588

1.9842.3812.7783.175

3.5723.9694.3664.762

5.1595.5565.9536.350

6.7477.1447.5417.938

8.3348.7319.1289.525

9.92210.31910.71611.112

11.50911.90612.30312.700

25.40025.79726.19426.59126.988

27.38427.78128.17828.575

28.97229.36929.76630.162

30.55930.95631.35331.750

32.14732.54432.94133.338

33.73434.13134.52834.925

35.32235.71936.11636.512

36.90937.30637.70338.100

50.80051.19751.59451.99152.388

52.78453.18153.57853.975

54.37254.76955.16655.562

55.95956.35656.75357.150

57.54757.94458.34158.738

59.13459.53159.92860.325

60.72261.11961.51661.912

62.30962.70663.10363.500

76.20076.59776.99477.39177.788

78.18478.58178.97879.375

79.77280.16980.56680.962

81.35981.75682.15382.550

82.94783.34483.74184.138

84.53484.93185.32885.725

86.12286.51986.91687.312

87.70988.10688.50388.900

101.600101.997102.394102.791103.188

103.584103.981104.378104.775

105.172105.569105.966106.362

106.759107.156107.553107.950

108.347108.744109.141109.538

109.934110.331110.728111.125

111.522111.919112.316112.712

113.109113.506113.903114.300

127.000127.397127.794128.191128.588

128.984129.381129.778130.175

130.572130.969131.366131.762

132.159132.556132.953133.350

133.747134.144134.541134.938

135.334135.731136.128136.525

136.922137.319137.716138.112

138.509138.906139.303139.700

152.400152.797153.194153.591153.988

154.384154.781155.178155.575

155.972156.369156.766157.162

157.559157.956158.353158.750

159.147159.544159.941160.338

160.734161.131161.528161.925

162.322162.719163.116163.512

163.909164.306164.703165.100

177.800178.197178.594178.991179.388

179.784180.181180.578180.975

181.372181.769182.166182.562

182.959183.356183.753184.150

184.547184.944185.341185.738

186.134186.531186.928187.325

187.722188.119188.516188.912

189.309189.706190.103190.500

203.200203.597203.994204.391204.788

205.184205.581205.978206.375

206.772207.169207.566207.962

208.359208.756209.153209.550

209.947210.344210.741211.138

211.534211.931212.328212.725

213.122213.519213.916214.312

214.709215.106215.503215.900

inch

0” 1” 2” 3” 4” 5” 6” 7” 8”

Fraction Decimal

0.5156250.5312500.5468750.562500

0.5781250.5937500.6093750.625000

0.6406250.6562500.6718750.687500

0.7031250.7187500.7343750.750000

0.7656250.7812500.7968750.812500

0.8281250.8437500.8593750.875000

0.8906250.9062500.9218750.937500

0.9531250.9687500.984375

13.09713.49413.89114.288

14.68415.08115.47815.875

16.27216.66917.06617.462

17.85918.25618.65319.050

19.44719.84420.24120.638

21.03421.43121.82822.225

22.62223.01923.41623.812

24.20924.60625.003

38.49738.89439.29139.688

40.08440.48140.87841.275

41.67242.06942.46642.862

43.25943.65644.05344.450

44.84745.24445.64146.038

46.43446.83147.22847.625

48.02248.41948.81649.212

49.60950.00650.403

63.89764.29464.69165.088

65.48465.88166.27866.675

67.07267.46967.86668.262

68.65969.05669.45369.850

70.24770.64471.04171.438

71.83472.23172.62873.025

73.42273.81974.21674.612

75.00975.40675.803

89.29789.69490.09190.488

90.88491.28191.67892.075

92.47292.86993.26693.662

94.05994.45694.85395.250

95.64796.04496.44196.838

97.23497.63198.02898.425

98.82299.21999.616

100.012

100.409100.806101.203

114.697115.094115.491115.888

116.284116.681117.078117.475

117.872118.269118.666119.062

119.459119.856120.253120.650

121.047121.444121.841122.238

122.634123.031123.428123.825

124.222124.619125.016125.412

125.809126.206126.603

140.097140.494140.891141.288

141.684142.081142.478142.875

143.272143.669144.066144.462

144.859145.256145.653146.050

146.447146.844147.241147.638

148.034148.431148.828149.225

149.622150.019150.416150.812

151.209151.606152.003

165.497165.894166.291166.688

167.084167.481167.878168.275

168.672169.069169.466169.862

170.259170.656171.053171.450

171.847172.244172.641173.038

173.434173.831174.228174.625

175.022175.419175.816176.212

176.609177.006177.403

190.897191.294191.691192.088

192.484192.881193.278193.675

194.072194.469194.866195.262

195.659196.056196.453196.850

197.247197.644198.041198.438

198.834199.231199.628200.025

200.422200.819201.216201.612

202.009202.406202.803

216.297216.694217.091217.488

217.884218.281218.678219.075

219.472219.869220.266220.662

221.059221.456221.853222.250

222.647223.044223.441223.838

224.234224.631225.028225.425

225.822226.219226.616227.012

227.409227.806228.203

inch

0” 1” 2” 3” 4” 5” 6” 7” 8”

Fraction Decimal

1 inch = 25.4 mm 1 inch = 25.4 mm

M

M37 M38

Hardness Conversion Table (Reference)Rockwell C

scale hardnessLoad 1471N

HRC

Shore hardness

HS

Vickers' hardness

HV

Brinell hardness

Standard ball Tungsten carbide ball

Rockwell hardness

A scaleLoad 588.4N

Diamond circular cone

B scaleLoad 980.7N

1/16" ball

6867666564

6362616059

5857565554

5352515049

4847464544

4342414039

940900865832800

772746720697674

653633613595577

560544528513498

484471458446434

423412402392382

—————

—————

—————

—(500)(487)(475)(464)

451442432421409

400390381371362

—————

—————

—————

—————

—————

—————

9795929188

8785838180

7876757472

7169686766

6463626058

5756555452

———

(739)(722)

(705)(688)(670)(654)(634)

615595577560543

525512496481469

455443432421409

400390381371362

85.685.084.583.983.4

82.882.381.881.280.7

80.179.679.078.578.0

77.476.876.375.975.2

74.774.173.673.172.5

72.071.570.970.469.9

Rockwell C scale hardness

Load 1471N

HRC

Shore hardness

HS

Vickers' hardness

HV

Brinell hardness

Standard ball Tungsten carbide ball

Rockwell hardness

A scaleLoad 588.4N

Diamond circular cone

B scaleLoad 980.7N

1/16" ball

3837363534

3332313029

2827262524

23222120

(18)(16)(14)(12)

(10) (8) (6) (4) (2) (0)

372363354345336

327318310302294

286279272266260

254248243238

230222213204

196188180173166160

353344336327319

311301294286279

271264258253247

243237231226

219212203194

187179171165158152

——

(109.0)(108.5)(108.0)

(107.5)(107.0)(106.0)(105.5)(104.5)

(104.0)(103.0)(102.5)(101.5)(101.0)

100.0 99.0 98.5 97.8

96.7 95.5 93.9 92.3

90.7 89.5 87.1 85.5 83.5 81.7

5150494847

4644434241

4140383837

36353534

33323129

282726252424

353344336327319

311301294286279

271264258253247

243237231226

219212203194

187179171165158152

69.468.968.467.967.4

66.866.365.865.364.7

64.363.863.362.862.4

62.061.561.060.5

————

——————

M

M39 M40

Tolerance of Shaft Diameter

Nominal Diameter

mmNominal Diameter

mmb12 c12 d6 e6 e12 f5 f6 g5 g6 h5 h6 h7 h8 h9 h10 h11

Incl. High Low High Low High Low High Low High Low High Low High Low High Low High Low High Low High Low High Low High Low High Low High Low High LowOver Incl.Over

—

3

6

10

18

30

40

50

65

80

100

120

140

160

180

200

225

250

280

315

355

400

450

3

6

10

18

30

40

50

65

80

100

120

140

160

180

200

225

250

280

315

355

400

450

500

—

3

6

10

18

30

40

50

65

80

100

120

140

160

180

200

225

250

280

315

355

400

450

3

6

10

18

30

40

50

65

80

100

120

140

160

180

200

225

250

280

315

355

400

450

500

－140

－140

－150

－150

－160

－170

－180

－190

－200

－220

－240

－260

－280

－310

－340

－380

－420

－480

－540

－600

－680

－760

－840

－ 60

－ 70

－ 80

－ 95

－110

－120

－130

－140

－150

－170

－180

－200

－210

－230

－240

－260

－280

－300

－330

－360

－400

－440

－480

－ 20

－ 30

－ 40

－ 50

－ 65

－ 80

－100

－120

－145

－170

－190

－210

－230

－ 26

－ 38

－ 49

－ 61

－ 78

－ 96

－119

－142

－170

－199

－222

－246

－270

－ 14

－ 20

－ 25

－ 32

－ 40

－ 50

－ 60

－ 72

－ 85

－100

－110

－125

－135

－ 20

－ 28

－ 34

－ 43

－ 53

－ 66

－ 79

－ 94

－110

－129

－142

－161

－175

－ 14

－ 20

－ 25

－ 32

－ 40

－ 50

－ 60

－ 72

－ 85

－100

－110

－125

－135

－114

－140

－175

－212

－250

－300

－360

－422

－485

－560

－630

－695

－765

－ 12

－ 18

－ 22

－ 27

－ 33

－ 41

－ 49

－ 58

－ 68

－ 79

－ 88

－ 98

－108

－ 6

－10

－13

－16

－20

－25

－30

－36

－43

－50

－56

－62

－68

－10

－15

－19

－24

－29

－36

－43

－51

－61

－70

－79

－87

－95

－ 6

－10

－13

－16

－20

－25

－30

－36

－43

－50

－56

－62

－68

－ 2

－ 4

－ 5

－ 6

－ 7

－ 9

－10

－12

－14

－15

－17

－18

－20

－ 6

－ 9

－11

－14

－16

－20

－23

－27

－32

－35

－40

－43

－47

－ 2

－ 4

－ 5

－ 6

－ 7

－ 9

－10

－12

－14

－15

－17

－18

－20

－ 8

－12

－14

－17

－20

－25

－29

－34

－39

－44

－49

－54

－60

－ 4

－ 5

－ 6

－ 8

－ 9

－11

－13

－15

－18

－20

－23

－25

－27

－ 6

－ 8

－ 9

－11

－13

－16

－19

－22

－25

－29

－32

－36

－40

－10

－12

－15

－18

－21

－25

－30

－35

－40

－46

－52

－57

－63

－14

－18

－22

－27

－33

－39

－46

－54

－63

－72

－81

－89

－97

－ 25

－ 30

－ 36

－ 43

－ 52

－ 62

－ 74

－ 87

－100

－115

－130

－140

－155

－ 40

－ 48

－ 58

－ 70

－ 84

－100

－120

－140

－160

－185

－210

－230

－250

－ 60

－ 75

－ 90

－110

－130

－160

－190

－220

－250

－290

－320

－360

－400

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

－ 240

－ 260

－ 300

－ 330

－ 370

－ 420

－ 430

－ 490

－ 500

－ 570

－ 590

－ 660

－ 680

－ 710

－ 800

－ 840

－ 880

－1000

－1060

－1170

－1250

－1390

－1470

－ 160

－ 190

－ 230

－ 275

－ 320

－ 370

－ 380

－ 440

－ 450

－ 520

－ 530

－ 600

－ 610

－ 630

－ 700

－ 720

－ 740

－ 820

－ 850

－ 930

－ 970

－1070

－1110

unit : μm

Nominal Diameter

mmNominal Diameter

mmh12 js5 j5 js6 j6 j7 k5 k6 m5 m6 n5 n6 p6

Incl. High Low High Low High Low High Low High Low High Low High Low High Low High Low High Low High Low High Low High LowOver Incl.Over

—

3

6

10

18

30

40

50

65

80

100

120

140

160

180

200

225

250

280

315

355

400

450

3

6

10

18

30

40

50

65

80

100

120

140

160

180

200

225

250

280

315

355

400

450

500

—

3

6

10

18

30

40

50

65

80

100

120

140

160

180

200

225

250

280

315

355

400

450

3

6

10

18

30

40

50

65

80

100

120

140

160

180

200

225

250

280

315

355

400

450

500

＋2

＋3

＋4

＋5

＋5

＋6

＋6

＋6

＋7

＋7

＋7

＋7

＋7

　0

＋1

＋1

＋1

＋2

＋2

＋2

＋3

＋3

＋4

＋4

＋4

＋5

－100

－120

－150

－180

－210

－250

－300

－350

－400

－460

－520

－570

－630

＋ 2

＋ 2.5

＋ 3

＋ 4

＋ 4.5

＋ 5.5

＋ 6.5

＋ 7.5

＋ 9

＋10

＋11.5

＋12.5

＋13.5

－ 2

－ 2.5

－ 3

－ 4

－ 4.5

－ 5.5

－ 6.5

－ 7.5

－ 9

－10

－11.5

－12.5

－13.5

＋ 3

＋ 4

＋ 4.5

＋ 5.5

＋ 6.5

＋ 8

＋ 9.5

＋11

＋12.5

＋14.5

＋16

＋18

＋20

－ 3

－ 4

－ 4.5

－ 5.5

－ 6.5

－ 8

－ 9.5

－11

－12.5

－14.5

－16

－18

－20

＋ 6

＋ 8

＋10

＋12

＋13

＋15

＋18

＋20

＋22

＋25

＋26

＋29

＋31

－ 4

－ 4

－ 5

－ 6

－ 8

－10

－12

－15

－18

－21

－26

－28

－32

＋ 4

＋ 6

＋ 7

＋ 8

＋ 9

＋11

＋12

＋13

＋14

＋16

＋16

＋18

＋20

－ 2

－ 2

－ 2

－ 3

－ 4

－ 5

－ 7

－ 9

－11

－13

－16

－18

－20

－ 2

－ 2

－ 2

－ 3

－ 4

－ 5

－ 7

－ 9

－11

－13

－16

－18

－20

＋ 4

＋ 6

＋ 7

＋ 9

＋11

＋13

＋15

＋18

＋21

＋24

＋27

＋29

＋32

　0

＋1

＋1

＋1

＋2

＋2

＋2

＋3

＋3

＋4

＋4

＋4

＋5

＋ 6

＋ 9

＋10

＋12

＋15

＋18

＋21

＋25

＋28

＋33

＋36

＋40

＋45

＋ 6

＋ 9

＋12

＋15

＋17

＋20

＋24

＋28

＋33

＋37

＋43

＋46

＋50

＋ 2

＋ 4

＋ 6

＋ 7

＋ 8

＋ 9

＋11

＋13

＋15

＋17

＋20

＋21

＋23

＋ 8

＋12

＋15

＋18

＋21

＋25

＋30

＋35

＋40

＋46

＋52

＋57

＋63

＋ 2

＋ 4

＋ 6

＋ 7

＋ 8

＋ 9

＋11

＋13

＋15

＋17

＋20

＋21

＋23

＋ 8

＋13

＋16

＋20

＋24

＋28

＋33

＋38

＋45

＋51

＋57

＋62

＋67

＋ 4

＋ 8

＋10

＋12

＋15

＋17

＋20

＋23

＋27

＋31

＋34

＋37

＋40

＋10

＋16

＋19

＋23

＋28

＋33

＋39

＋45

＋52

＋60

＋66

＋73

＋80

＋ 4

＋ 8

＋10

＋12

＋15

＋17

＋20

＋23

＋27

＋31

＋34

＋37

＋40

＋ 12

＋ 20

＋ 24

＋ 29

＋ 35

＋ 42

＋ 51

＋ 59

＋ 68

＋ 79

＋ 88

＋ 98

＋108

＋ 6

＋12

＋15

＋18

＋22

＋26

＋32

＋37

＋43

＋50

＋56

＋62

＋68

0

0

0

0

0

0

0

0

0

0

0

0

0

h13

－140

－180

－220

－270

－330

－390

－460

－540

－630

－720

－810

－890

－970

0

0

0

0

0

0

0

0

0

0

0

0

0

unit : μm

High Low

M

M41 M42

Tolerance of Housing Bore Diameter

Nominal Diameter

mmNominal Diameter

mmB12 E7 E11 E12 F6 F7 G6 G7 H6 H7 H8 H9 H10 H11 JS6 J6

Incl. High Low High Low High Low High Low High Low High Low High Low High Low High Low High Low High Low High Low High Low High Low High Low High LowOver Incl.Over

—

3

6

10

18

30

40

50

65

80

100

120

140

160

180

200

225

250

280

315

355

400

450

3

6

10

18

30

40

50

65

80

100

120

140

160

180

200

225

250

280

315

355

400

450

500

—

3

6

10

18

30

40

50

65

80

100

120

140

160

180

200

225

250

280

315

355

400

450

3

6

10

18

30

40

50

65

80

100

120

140

160

180

200

225

250

280

315

355

400

450

500

－4

－3

－4

－5

－5

－6

－6

－6

－7

－7

－7

－7

－7

0

0

0

0

0

0

0

0

0

0

0

0

0

＋ 240

＋ 260

＋ 300

＋ 330

＋ 370

＋ 420

＋ 430

＋ 490

＋ 500

＋ 570

＋ 590

＋ 660

＋ 680

＋ 710

＋ 800

＋ 840

＋ 880

＋1000

＋1060

＋1170

＋1250

＋1390

＋1470

＋ 24

＋ 32

＋ 40

＋ 50

＋ 61

＋ 75

＋ 90

＋107

＋125

＋146

＋162

＋182

＋198

＋ 14

＋ 20

＋ 25

＋ 32

＋ 40

＋ 50

＋ 60

＋ 72

＋ 85

＋100

＋110

＋125

＋135

＋ 74

＋ 95

＋115

＋142

＋170

＋210

＋250

＋292

＋335

＋390

＋430

＋485

＋535

＋ 14

＋ 20

＋ 25

＋ 32

＋ 40

＋ 50

＋ 60

＋ 72

＋ 85

＋100

＋110

＋125

＋135

＋114

＋140

＋175

＋212

＋250

＋300

＋360

＋422

＋485

＋560

＋630

＋695

＋765

＋ 14

＋ 20

＋ 25

＋ 32

＋ 40

＋ 50

＋ 60

＋ 72

＋ 85

＋100

＋110

＋125

＋135

＋ 12

＋ 18

＋ 22

＋ 27

＋ 33

＋ 41

＋ 49

＋ 58

＋ 68

＋ 79

＋ 88

＋ 98

＋108

＋ 6

＋10

＋13

＋16

＋20

＋25

＋30

＋36

＋43

＋50

＋56

＋62

＋68

＋ 16

＋ 22

＋ 28

＋ 34

＋ 41

＋ 50

＋ 60

＋ 71

＋ 83

＋ 96

＋108

＋119

＋131

＋ 6

＋10

＋13

＋16

＋20

＋25

＋30

＋36

＋43

＋50

＋56

＋62

＋68

＋ 8

＋12

＋14

＋17

＋20

＋25

＋29

＋34

＋39

＋44

＋49

＋54

＋60

＋ 2

＋ 4

＋ 5

＋ 6

＋ 7

＋ 9

＋10

＋12

＋14

＋15

＋17

＋18

＋20

＋12

＋16

＋20

＋24

＋28

＋34

＋40

＋47

＋54

＋61

＋69

＋75

＋83

＋ 2

＋ 4

＋ 5

＋ 6

＋ 7

＋ 9

＋10

＋12

＋14

＋15

＋17

＋18

＋20

＋ 6

＋ 8

＋ 9

＋11

＋13

＋16

＋19

＋22

＋25

＋29

＋32

＋36

＋40

0

0

0

0

0

0

0

0

0

0

0

0

0

＋10

＋12

＋15

＋18

＋21

＋25

＋30

＋35

＋40

＋46

＋52

＋57

＋63

0

0

0

0

0

0

0

0

0

0

0

0

0

＋14

＋18

＋22

＋27

＋33

＋39

＋46

＋54

＋63

＋72

＋81

＋89

＋97

＋ 2

＋ 5

＋ 5

＋ 6

＋ 8

＋10

＋13

＋16

＋18

＋22

＋25

＋29

＋33

0

0

0

0

0

0

0

0

0

0

0

0

0

＋ 25

＋ 30

＋ 36

＋ 43

＋ 52

＋ 62

＋ 74

＋ 87

＋100

＋115

＋130

＋140

＋155

0

0

0

0

0

0

0

0

0

0

0

0

0

＋ 40

＋ 48

＋ 58

＋ 70

＋ 84

＋100

＋120

＋140

＋160

＋185

＋210

＋230

＋250

0

0

0

0

0

0

0

0

0

0

0

0

0

＋ 60

＋ 75

＋ 90

＋110

＋130

＋160

＋190

＋220

＋250

＋290

＋320

＋360

＋400

＋ 3

＋ 4

＋ 4.5

＋ 5.5

＋ 6.5

＋ 8

＋ 9.5

＋11

＋12.5

＋14.5

＋16

＋18

＋20

－ 3

－ 4

－ 4.5

－ 5.5

－ 6.5

－ 8

－ 9.5

－11

－12.5

－14.5

－16

－18

－20

＋140

＋140

＋150

＋150

＋160

＋170

＋180

＋190

＋200

＋220

＋240

＋260

＋280

＋310

＋340

＋380

＋420

＋480

＋540

＋600

＋680

＋760

＋840

Nominal Diameter

mmNominal Diameter

mmJS7 J7 K5 K6 K7 M6 M7 N6 N7 P6 P7 R7 S7

Incl. High Low High Low High Low High Low High Low High Low High Low High Low High Low High Low High Low High Low High LowOver Incl.Over

—

3

6

10

18

30

40

50

65

80

100

120

140

160

180

200

225

250

280

315

355

400

450

3

6

10

18

30

40

50

65

80

100

120

140

160

180

200

225

250

280

315

355

400

450

500

—

3

6

10

18

30

40

50

65

80

100

120

140

160

180

200

225

250

280

315

355

400

450

3

6

10

18

30

40

50

65

80

100

120

140

160

180

200

225

250

280

315

355

400

450

500

　0

　0

＋1

＋2

＋1

＋2

＋3

＋2

＋3

＋2

＋3

＋3

＋2

＋ 5

＋ 6

＋ 7

＋ 9

＋10

＋12

＋15

＋17

＋20

＋23

＋26

＋28

＋31

－ 5

－ 6

－ 7

－ 9

－10

－12

－15

－17

－20

－23

－26

－28

－31

＋ 4

＋ 6

＋ 8

＋10

＋12

＋14

＋18

＋22

＋26

＋30

＋36

＋39

＋43

－ 6

－ 6

－ 7

－ 8

－ 9

－11

－12

－13

－14

－16

－16

－18

－20

－ 4

－ 5

－ 5

－ 6

－ 8

－ 9

－10

－13

－15

－18

－20

－22

－25

　0

＋2

＋2

＋2

＋2

＋3

＋4

＋4

＋4

＋5

＋5

＋7

＋8

－ 6

－ 6

－ 7

－ 9

－11

－13

－15

－18

－21

－24

－27

－29

－32

　 0

＋ 3

＋ 5

＋ 6

＋ 6

＋ 7

＋ 9

＋10

＋12

＋13

＋16

＋17

＋18

－10

－ 9

－10

－12

－15

－18

－21

－25

－28

－33

－36

－40

－45

－ 2

－ 1

－ 3

－ 4

－ 4

－ 4

－ 5

－ 6

－ 8

－ 8

－ 9

－10

－10

－ 8

－ 9

－12

－15

－17

－20

－24

－28

－33

－37

－41

－46

－50

－2

　0

　0

　0

　0

　0

　0

　0

　0

　0

　0

　0

　0

－12

－12

－15

－18

－21

－25

－30

－35

－40

－46

－52

－57

－63

－ 4

－ 5

－ 7

－ 9

－11

－12

－14

－16

－20

－22

－25

－26

－27

－10

－13

－16

－20

－24

－28

－33

－38

－45

－51

－57

－62

－67

－ 4

－ 4

－ 4

－ 5

－ 7

－ 8

－ 9

－10

－12

－14

－14

－16

－17

－14

－16

－19

－23

－28

－33

－39

－45

－52

－60

－66

－73

－80

－ 6

－ 9

－12

－15

－18

－21

－26

－30

－36

－41

－47

－51

－55

－12

－17

－21

－26

－31

－37

－45

－52

－61

－70

－79

－87

－95

－ 6

－ 8

－ 9

－11

－14

－17

－21

－24

－28

－33

－36

－41

－45

－ 10

－ 11

－ 13

－ 16

－ 20

－ 25

－ 30

－ 32

－ 38

－ 41

－ 48

－ 50

－ 53

－ 60

－ 63

－ 67

－ 74

－ 78

－ 87

－ 93

－103

－109

－ 20

－ 23

－ 28

－ 34

－ 41

－ 50

－ 60

－ 62

－ 73

－ 76

－ 88

－ 90

－ 93

－106

－109

－113

－126

－130

－144

－150

－166

－172

－ 14

－ 15

－ 17

－ 21

－ 27

－ 34

－ 42

－ 48

－ 58

－ 66

－ 77

－ 85

－ 93

－105

－113

－123

－138

－150

－169

－187

－209

－229

－ 24

－ 27

－ 32

－ 39

－ 48

－ 59

－ 72

－ 78

－ 93

－ 101

－117

－125

－133

－151

－159

－169

－190

－202

－226

－244

－272

－292

－ 16

－ 20

－ 24

－ 29

－ 35

－ 42

－ 51

－ 59

－ 68

－ 79

－ 88

－ 98

－108

unit : μm

unit : μm

M43 M44

N-lbf Conversion Table1N = 0.224809 lbf 1lbf = 4.44822 N

How to use : For example, to convert 20 N into lbf, find the number 20 in the center of the first column. By referring to the lbf column on the right, it will be found that 20 N equals 4.496 lbf. To convert 20 lbf into N, refer to the N column on the left and it will be found that 20 lbf equals 88.964 N.

N-kgf Conversion Table1N = 0.1019716 kgf 1kgf = 9.80665 N

How to use : For example, to convert 20 N into kgf, find the number 20 in the center of the first column. By referring to the kgf column on the right, it will be found that 20 N equals 2.0394 kgf. To convert 20 kgf into N, refer to the N column on the left and it will be found that 20 kgf equals 196.13 N.

4.448 8.89613.34517.79322.241

26.68931.13835.58640.03444.482

48.93053.37957.82762.27566.723

71.17175.62080.06884.51688.964

93.41397.861102.31106.76111.21

115.65120.10124.55129.00133.45

137.89142.34146.79

0.2250.4500.6740.8991.124

1.3491.5741.7982.0232.248

2.4732.6982.9233.1473.372

3.5973.8224.0474.2714.496

4.7214.9465.1715.3955.620

5.8456.0706.2956.5196.744

6.9697.1947.419

151.24155.69160.14164.58169.03

173.48177.93182.38186.83191.27

195.72200.17204.62209.07213.51

217.96222.41226.86231.31235.76

240.20244.65249.10253.55258.00

262.44266.89271.34275.79280.24

284.69289.13293.58

7.6437.8688.0938.3188.543

8.7688.9929.2179.4429.667

9.89210.11610.34110.56610.791

11.01611.24011.46511.69011.915

12.14012.36412.58912.81413.039

13.26413.48913.71313.93814.163

14.38814.61314.837

298.03302.48306.93311.38315.82

320.27324.72329.17333.62338.06

342.51346.96351.41355.86360.31

364.75369.20373.65378.10382.55

386.99391.44395.89400.34404.79

409.24413.68418.13422.58427.03

431.48435.93440.37

15.06215.28715.51215.73715.961

16.18616.41116.63616.86117.085

17.31017.53517.76017.98518.210

18.43418.65918.88419.10919.334

19.55819.78320.00820.23320.458

20.68220.90721.13221.35721.582

21.80622.03122.256

1 2 3 4 5

6 7 8 910

1112131415

1617181920

2122232425

2627282930

313233

3435363738

3940414243

4445464748

4950515253

5455565758

5960616263

646566

6768697071

7273747576

7778798081

8283848586

8788899091

9293949596

979899

N lbf N lbf N lbf

9.806619.61329.42039.22749.033

58.84068.64778.45388.26098.066

107.87117.68127.49137.29147.10

156.91166.71176.52186.33196.13

205.94215.75225.55235.36245.17

254.97264.78274.59284.39294.20

304.01313.81323.62

0.10200.20390.30590.40790.5099

0.61180.71380.81580.91771.0197

1.12171.22371.32561.42761.5296

1.63151.73351.83551.93752.0394

2.14142.24342.34532.44732.5493

2.65132.75322.85522.95723.0591

3.16113.26313.3651

333.43343.23353.04362.85372.65

382.46392.27402.07411.88421.69

431.49441.30451.11460.91470.72

480.53490.33500.14509.95519.75

529.56539.37549.17558.98568.79

578.59588.40598.21608.01617.82

627.63637.43647.24

3.46703.56903.67103.77293.8749

3.97694.07894.18084.28284.3848

4.48684.58874.69074.79274.8946

4.99665.09865.20065.30255.4045

5.50655.60845.71045.81245.9144

6.01636.11836.22036.32226.4242

6.52626.62826.7301

657.05666.85676.66686.47696.27

706.08715.89725.69735.50745.31

755.11764.92774.73784.53794.34

804.15813.95823.76833.57843.37

853.18862.99872.79882.60892.41

902.21912.02921.83931.63941.44

951.25961.05970.86

6.8321 6.9341 7.0360 7.1380 7.2400

7.3420 7.4439 7.5459 7.6479 7.7498

7.8518 7.9538 8.0558 8.1577 8.2597

8.3617 8.4636 8.5656 8.6676 8.7696

8.8715 8.9735 9.0755 9.1774 9.2794

9.3814 9.4834 9.5853 9.6873 9.7893

9.8912 9.993210.0952

1 2 3 4 5

6 7 8 910

1112131415

1617181920

2122232425

2627282930

313233

3435363738

3940414243

4445464748

4950515253

5455565758

5960616263

646566

6768697071

7273747576

7778798081

8283848586

8788899091

9293949596

979899

N kgf N kgf N kgf

M

M45 M46

Temperature Conversion Table C = (F-32) F = 32+ C

How to use : For example, to convert 20˚C into ˚F, find the number 20 in the center of the first column. By referring the ˚F column on the right, it will be found that 20˚C equals 68.0˚F. To convert 20˚F into ˚C, refer to the ˚C column on the left and it will be found that 20˚F equals -6.7˚C.

-73.3-62.2-51.1-40.0-28.9

-17.8-17.2-16.7-16.1-15.6

-15.0-14.4-13.9-13.3-12.8

-12.2-11.7-11.1-10.6-10.0

- 9.4 - 8.9 - 8.3 - 7.8 - 7.2

- 6.7 - 6.1 - 5.6 - 5.0 - 4.4

- 3.9 - 3.3 - 2.8

-148.0-112.0- 76.0- 40.0

- 4.0

32.0 33.8 35.6 37.4 39.2

41.0 42.8 44.6 46.4 48.2

50.0 51.8 53.6 55.4 57.2

59.0 60.8 62.6 64.4 66.2

68.0 69.8 71.6 73.4 75.2

77.0 78.8 80.6

-100- 80- 60- 40- 20

0 1 2 3 4

5 6 7 8 9

10 11 12 13 14

15 16 17 18 19

20 21 22 23 24

25 26 27

˚C ˚F

-2.2-1.7-1.1-0.6

0

0.61.11.72.22.8

3.33.94.45.05.6

6.16.77.27.88.3

8.99.4

10.0 10.6 11.1

11.7 12.2 12.8 13.3 13.9

14.4 15.0 15.6

82.4 84.2 86.0 87.8 89.6

91.4 93.2 95.0 96.8 98.6

100.4102.2104.0105.8107.6

109.4111.2113.0114.8116.6

118.4120.2122.0123.8125.6

127.4129.2131.0132.8134.6

136.4138.2140.0

2829303132

3334353637

3839404142

4344454647

4849505152

5354555657

585960

˚C ˚F

16.116.717.217.818.3

18.919.420.020.621.1

21.722.222.823.323.9

24.425.025.626.126.7

27.227.828.328.929.4

30.030.631.131.732.2

32.833.333.9

141.8143.6145.4147.2149.0

150.8152.6154.4156.2158.0

159.8161.6163.4165.2167.0

168.8170.6172.4174.2176.0

177.8179.6181.4183.2185.0

186.8188.6190.4192.2194.0

195.8197.6199.4

6162636465

6667686970

7172737475

7677787980

8182838485

8687888990

919293

˚C ˚F

34.435.035.636.136.7

37.237.843.348.954.4

60.065.671.176.782.2

87.893.3

121.1 149 177

204 232 260 288 316

343 371 399 427 454

482 510 538

201.2 203.0 204.8 206.6 208.4

210.2212230248266

284302320338356

374392482572662

752842932

1022 1112

1202 1292 1382 1472 1562

1652 1742 1832

94 95 96 97 98

99100110120130

140150160170180

190200250300350

400450500550600

650700750800850

900950

1000

˚C ˚F

5－99－5

Note( 1 ) : Figures in parentheses show the maximum allowable temperature in very short time operation, and they are not applicable for continuous

operation.Remark When using these products, see individual manufacturer's catalogs.

So

rtG

ener

al p

urp

ose

Low

tem

per

atur

eW

ide

tem

pera

ture

rang

eE

xtre

me

pre

ssur

eO

ther

s

Thickener of metallic

soap

Con-sistency

Dropping point (˚C)

Servicerange(

1 )

(˚C)RemarksName Supplier

ALVANIA GREASE S1

ALVANIA GREASE S2

ALVANIA GREASE S3

DAPHNE GREASE MP NO.2

COSMO GREASE DYNAMAX No.2

MULTINOC GREASE 2

ALVANIA GREASE RA-J

BEACON 325

ISOFLEX LDS 18 SPECIAL A

ISOFLEX SUPER LDS 18

LT GREASE No.2

TEMPREX N3

AEROSHELL GREASE 7

MULTEMP PS No.2

MULTEMP SRL

MULTINOC WIDE No.2

ALVANIA EP GREASE 2

MOLYKOTE BR2-PLUS

MOLUB-ALLOY #777-2

G 40M

G 40H

KRYTOX 240AD

BARRIERTA L55/2

BARRIERTA IMI/V

DOLIUM GREASE R

STAMINA GREASE RL2

SHELL LUBRICANTS JAPAN



IDEMITSU

COSMO

JXTG NIPPON OIL & ENERGY


EMG LUBRICANTS

KLÜBER

KLÜBER


EMG LUBRICANTS


KYODO YUSHI

KYODO YUSHI



TORAY/DOW CORNING

CASTROL

SHIN-ETSU

SHIN-ETSU

CHEMOURS

KLÜBER

KLÜBER



323

283

242

276

280

278

252

280

280

280

275

235

288

275

242

247

276

265

280

260

220

275

No.2

No.2

281

268

General, Centralized greasing

General, Centralized greasing

General

General

General

General

Low temperature

Low temperature, Low torque

Grease names and the characteristics (Reference)

Li

Li

Li

Li

Li

Li

Li

Li

Li

Li

Li

Li Complex

Microgel

Li

Li

Li+special Na

Li

Li

Li

Li

Li

Fluorinated

Fluorinated

Fluorinated

Polyurea

Polyurea

182

185

185

195

188

212

183

193

≧185

≧185

181

≧300

≧260

190

192

203

187

185

182

≧200

≧200

None

None

None

249

271

－35～＋120

－25～＋120

－20～＋135

－20～＋120

－20～＋120

－30～＋125

－40～＋130

－60～＋130

－60～＋130

－50～＋150

－73～＋149

－50～＋130

－50～＋150

－40～＋135

－20～＋110

－30～＋150

0～＋135

－30～＋200

－30～＋200

－30～＋288

－50～＋220

－30～＋150

－20～＋180

（＋200）－20～＋160

（＋250）－35～＋220

（＋160）－60～＋120

Low temperature, High　speed,Extreme pressureLow temperature, Highspeed,Low noise

Low temperature

Wide temperature range, HightemperatureWide temperature range, LowtemperatureWide temperature range, For lowtemperature & low noiseWide temperature range, For lowtemperature & low noise

Wide temperature range

Extreme pressure, Centralizedgreasing

With MoS2, Extreme pressure

With MoS2, Extreme pressure

Wide temperatur range, Superior at high temperature with stable anti-oxidation and water proof, Chemically inertWide temperatur range, Superior at high temperature with stable anti-oxidation and water proof, Chemically inert

Stabl at high temperature, Chemically inert, Anti-solventGeneral, Low evaporation at high temperature, Chemically inert

For high vacuum

Heat resistant, Superior at high temperature with stable anti-oxidationHeat resistant, Superior at high temperature with stable anti-oxidation

M

Linear Motion Rolling Guide Series, Configuration of General Catalog

REDRED

Linear Motion Rolling Guide Series General Catalog Consists of and , the two volumes.REDRED（CAT-1584E）

BLUEBLUE（CAT-1583E）

BLUEBLUE

Rail Guide TypeEndless Linear Motion Type

Rail Guide TypeLimited Linear Motion Type

Shaft Guide TypeEndless Linear Motion TypeLimited Linear Motion Type + Rolling Motion Type

Flat Guide TypeEndless Linear Motion TypeLimited Linear Motion Type

【Models】

Rail Guide TypeCrossed Roller Way

CRW(G)(…H)CRWU(G)

Rail Guide TypeLinear Slide Unit

BWU･BSP(G)BSU…A

Shaft Guide TypeLinear Ball Spline

MAG･LSAG

Shaft Guide TypeLinear Bushing

LMG・LM・LMS

Shaft Guide TypeStroke Rotary Bushing

ST・STSI・BG

Flat Guide TypeRoller Way & Flat Roller Cage

RW・SR・GSNFT･FTW…A

【Models】

CAT-1583E CAT-1584E

C-Lube Linear Way MLLinear Way L

ML・LWL

C-Lube Linear Way MLV

MLV

C-Lube Linear Way MV

MV

C-Lube Linear Way MELinear Way E

ME・LWE

C-Lube Linear Way MHLinear Way H

MH・LWH

Linear Way F

LWF

C-Lube Linear Way MULLinear Way U

MUL・LWU

C-Lube Linear Roller Way Super MXLinear Roller Way Super X

MX・LRXLinear Roller Way X

LRWXLinear Way Module

LWLM・LRWM

LINEAR MOTION ROLLING GUIDE

LINE

AR

MO

TION

RO

LLING

GU

IDE LINEAR MOTION

RED

RED







LINEAR MOTION ROLLING GUIDE

LINE

AR

MO

TION

RO

LLING

GU

IDE LINEAR MOTION

BLUE

BLUE







M47 M48

M

The surface of capillary lubricating element is always covered with the lubrication oil.Lubrication oil is continuously supplied to the surface of rolling elements by surface tension in the contact of capillary lubricating element surface and rolling elements.On the surface of capillary lubricating element with which the rolling elements make contact, new lubrication oil is always supplied from the other sections.

The lubrication oil is supplied directly to the rolling elements, not to the track rail.When rolling elements make contact with the capillary lubri-cating element integrated with the circulation path of slide unit rolling elements, the lubrication oil is supplied to surfaces of rolling elements and carried to the loading area through circulation of rolling elements.This results in adequate lubrication oil being properly main-tained in the loading area and lubrication performance will last for a long time.

Track railSlide unit stroke direction

Cylindrical rollers

C-Lube

Cylindrical rollers

C-LubeCapillary

Cylindrical rollers

C-Lube

Compact

C-Lube Linear Way and C-Lube Linear Roller Way do not generate slide resistance unlike lubri-cation parts external to the slide unit that make contact with the track rail.Driving force follow-up property is superior and energy is saved by improvement of accuracy and reduction of friction loss.

As C-Lube Linear Way and C-Lube Linear Roller Way are integrated with lubrication part C-Lube, their slide units are not long unlike types with external lubrication parts.Replacement of conventional parts is easy free from constraints of mounting space and stroke length.

Smooth

Traveling distance mm

Fric

tiona

l res

ista

nce

N

0

1.0

2.0

3.0

0 50 100 150

ML9 standard preload

C-Lube Linear Way

External lubrication parts

Features of Maintenance Free Series

C-Lube Linear Roller WayC-Lube Linear Way

C-Lube integrated

Maintenance freeThis endures running over 20,000 km without oil feeding with lubrication oil in the C-Lube only.Furthermore, grease is pre-packed in the slide unit so long term maintenance free can be realized.

0 20 000km 40 000 60 000 80 000 100 000

4.9 km lubrication shortage damageLinear WayLWL9

C-Lube Linear WayML9

C-Lube Linear WayME25

C-Lube Linear Roller WayMXG45

Durability test result

Oil supply test result

As lubrication oil in C-Lube is supplied by the amount necessary to maintain lubrication perfor-mance of the rolling guide, the consumption of lubrication oil is reduced and lubrication perfor-mance is maintained even when it run for a long period.

Traveling distance km

Eco-friendly

Running of 86,000 km without failure





Traveling distance km

Lubr

icat

ion

oil s

uppl

y am

ount

wt%

0 20 000km 40 000 60 000 80 000 100 0000

20

40

60

80

100 No pre-packed greaseNo applied load

ML9ML12ML15

Features of C-Lube Linear Way and C-Lube Linear Roller WayFeatures of C-Lube Linear Way and C-Lube Linear Roller Way Long term maintenance free is realized with oil impregnated with C-Lube only !!

*1. Typical device life is assumed. Re-greasing may be necessary depending on use conditions.

Linear way using conventional lubrication parts

The aquamarine end plate is the symbol of maintenance free.

Original and world's first

structure with [C-Lube]Original and world's first

structure with [C-Lube]No C-Lube（No grease）

C-Lube integratedHigh-speed at 240 m/minNo grease

C-Lube integratedHigh acceleration / deceleration 26GNo grease

C-Lube integratedLoad of 0.09CNo grease



Light and smooth motion is achieved!Light and smooth motion is achieved!

Eco-friendly specification reducing usage of lubrication oil!

Eco-friendly specification reducing usage of lubrication oil!

Compact design taking into account compactness!

Compact design taking into account compactness!

Maintenance free is achieved until the end of device life

*1

!Maintenance free is achieved

until the end of device life*1

!

Frictional resistance test result

Lubrication oil is carried through circulation of rolling elements

Lubrication oil is directly supplied to surfaces of the rolling elements

Lubrication oil filmSurface tension

Gentle to The EarthLong term maintenance free is realized with

oil impregnated with C-Lube only !!

M49 M50

M

C-Lube Linear Way MLC-Lube Linear Way MLVLinear Way L

C-Lube Linear Way MELinear Way ELow Decibel Linear Way E

C-Lube Linear Way MHLinear Way H

Micro Linear Way L

1, 2, 3, 5, 7, 9, 12, 15, 20, 25

4, 6, 10, 14, 18, 24, 30, 42

Standard type

Wide type

Size

MELWE

METLWET

MESLWES

15, 20, 25, 30, 35, 45

Size

8, 10, 12, 15, 20, 25, 30, 35, 45, 55, 65

Flange typemounting from bottom

MHLWH

Flange typemounting from top（1）

MHTLWHT

Block typemounting from top

MHDLWHD

Compact block typemounting from top

MHSLWHS

Size

C

No symbol

G

L

Length of slide unit

Size

Short

Standard

Long

Extra long

C

No symbol

G

Length of slide unitShort

Standard

Long

C

No symbol

G

L

Short

Standard

Long

Extra long


Models and Size Variations

A variety of models and size variations

Thanks to the structure with two rows of balls to contact with the way at four points, stable accuracy and rigidity can be achieved even in applica-tions where load has variable direction and size or complex load is applied, despite its very small body.

Standard type Wide type

Versatile linear motion rolling guide that has achieved utility pursuing com-pactness in every aspect. Low decibel types with resin separator to prevent direct contact between balls are also available.

High rigidity linear motion rolling guides designed to evenly support high load capacity by incorporating large-diameter balls. Stable accuracy and rigidity can be achieved even in applications where load with variable direc-tion and size and complex load are applied.

Ball Type Compact Series

Ball Type High Rigidity Series

Ball Type Miniature Series

As the lineup of track rail width from 1 mm to 6 mm is available, you can select an optimal product for the specifications of your machine and device. For LWL1, world's smallest size is realized: track rail width of 1 mm, slide unit width of 4 mm and assembly height of 2.5 mm.

MLLWL

MLFLWLF

Note （1） Some models may be mounted from bottom.

Flange typemounting from bottom

Flange typemounting from top


C-Lube Linear Way MV

20, 25, 30

SizeStandard


Despite its extra low profile and extra light weight, this linear motion rolling guide has the maximum load rating among the ball types while achieving high load capacity.

Ball Type Low Profile/Light Weight Series

M51 M52

M


10, 12, 15, 20, 25, 30, 35, 45, 55, 65, 85, 100

Size

C

Short

No symbol

Standard

G

Long

L

Extra long

Four-row roller guide of world's smallest size Track rail width of 10 mm

Four-row roller guide of world's smallest size Track rail width of 10 mm

LRXD10…SLStainless steel made

C-Lube Linear Way MULLinear Way U

Linear Way F C-Lube Linear Roller Way Super MXLinear Roller Way Super X

Flange typemounting from top / bottom

Low profile flange typemounting from top

MX（1）

LRX（1）MXN

Low profile block typemounting from top

MXNS


MXDLRXD

Compact block typemounting from top

MXSLRXS

Note （1） Size 20 series allows only for mounting from top and model mounting from bottom is MXH and LRXH.

Linear motion rolling guide that has achieved the highest level of perfor-mance in all characteristics utilizing the roller's superior characteristic, such as rigidity, load capacity, running accuracy and vibration damping property. With extra long unit with the maximum slide unit length, load capacity and rigidity are improved and running performance with super high accuracy is realized.

Roller Type

Size

25, 30

25, 30

40, 50, 60, 86, 100, 130

MUL

LWUL

LWU

Size

40,60,90

33,37,42,69

33,37,42

LWFH

LWFF

LWFS

Linear motion rolling guide of the structure with way inside the track rail of U-shaped section and slide unit therein. With the U-shaped track rail, rigid-ity against the track rail moment load and torsion is significantly improved.

Ball Type U-Shaped Track Rail Series

Ball Type Wide Type Series

As wide track rail is used and the distance between the load points is long, this is a linear motion rolling guide suitable to single-row use due to the structure resistant to across-the-width moment load. It is also resistant to complex load.

Small typeMULLWUL

Standard typeLWU


StandardLength of slide unit

StandardLength of slide unit

LWFH



LWFF LWFS

Models and Size Variations

A variety of models and size variations

Nosymbol

Nosymbol Super high rigidity

Super high load capacity

High running performance

Excellent frictional characteristics

M53 M54

M

M55 M56

TU Series Precision Positioning Ta-ble TU is a compact and slim po-

sitioning table with good load bal-

ance and high resistance to com-

plex loads, in which the side table

is arranged inside the U-shape

track rail. Six types with a track

rail width of 25～ 130mm are

available. Each slide table length

can be selected as required. Dif-

ferent table specifications includ-

ing ball screw, motor, sensor, etc. can be selected. This allows each user to configure the

most suitable positioning table for each application.

Abundant options meet diversified market needs such as a motor loopback specification, table

with bellows, table with bridge cover, and table finished by black chrome surface treatment.

Linear Motor Table LTThe Linear Motor Table LT is

a compact and lightweight direct-

drive positioning table with a very

small sectional height in which an AC

servo-motor and an optional linear

scale are integrated in a moving table

and a bed made of aluminum alloy.

The Linear Motor Table LT

employs a C-shaped magnet yoke,

and a coil board is sandwiched be-

tween two stator magnets. It pro-

vides a high thrust of 450N though its height is only 40 mm. The moving table is as light as 1.5 kg but

provides high thrust. It permits high acceleration and deceleration exceeding 10 G. (In the case of

LT150 CG.) Also, High Thrust Series LT…H outputs 900N thrust.

Using advanced servo technology, this product achieves high static stability and high-speed stability.

Mechatronics SeriesMechatronics Series

IKO

IKO

IKO

M

Presentation of Mechatronics Series

Precision Positioning Table

Light weight precision positioning table

made of high-strength aluminum alloy.

Built-in C-Lube for long-term maintenance-

free service.

TE B

Very compact positioning table that

is 20mm high（sectional） and 17mm

wide driven by a ground ball screw.

+/-0.5micron repeatability is achieved

with 60 mm stroke length.

TM

Micro Precision Positioning Table

IKO

Introduction of Technical Service Site

"IKO Technical Service Site" can be accessed from our home page. The site provides various tools for

selecting Linear Ways and Linear Roller Ways. Please utilize these tools for assistance when selecting

products. Additionally the site also provides CAD data and product catalogs for the Needle Series,

Linear Motion Rolling Guide Series, and Mechatronics Series for download. Please utilize them to

improve your design efficiency.

1. Technical calculationsFor Linear Way/Linear Roller Way load and life calculation, you

can obtain the calculated load and the rating life by entering the

operating conditions.

Also you can derive the motor torque required for operation and

the effective thrust force during operation in the sections of

motor torque calculation and calculation of effective thrust force

of linear motor tables respectively, and output the calculation

results in PDF format, as well as save the histories.

2. Selection of Identification NumberBy selecting such specification as model code, dimensions, part code, material

code, preload symbol, classification symbol, interchangeable code and

supplemental code of Linear ways/Linear roller ways, you can easily specify

the identification number used for ordering.

Also you can browse the CAD data of the selected products, calculate the load,

and output the selection results in PDF format, as well as save the histories.

4. Downloading Catalog and Operation Manual

3. Downloading CAD data

There are two types of figures, brief figure and detailed figure. The

brief figure shows only the external view lines, and the detailed

figure shows the detailed lines. The drawing consists of three

drawings: front view, side view and plain view. The scale shows

only the original size (1:1), and it does not show dimension lines.

2-dimensional CAD data (DXF file)

It is linked to the mechanical parts CAD library

"PART community". Entering the rail dimension

and option contents to the detail, you can view

the 2D/3D CAD data suitable for the specification

for free of charge.

3-dimensional CAD data

You can download product catalogs of needle series, linear motion rolling guide series and mechatronics

series, operation manuals of precision positioning tables and various electrical components in PDF format,

as well as support software for precision positioning tables. If you would like a copy of our catalog, please

visit the IKO official website and apply for the catalog, or contact our regional office or sales office nearby.

M57 M58

M

M59 M60


Thrust Bearings

Thrust Bearings

Thrust Bearings











Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers


Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Miniature Type Cam Followers







C-Lube Unit for Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers

Cam Followers














Cam Followers

Cam Followers

Cam Followers

Cam Followers

Roller Followers

Roller Followers

Roller Followers

Roller Followers


Spherical Bushings

Spherical Bushings

Spherical Bushings

Spherical Bushings

Spherical Bushings

Spherical Bushings

L21

F7

F11

F11

B27

B27

B45

B45

B27

B27

D47

D67

D51

D71

I25

I25

I25

I25

I25

I25

I25

I25

I29

I29

I29

I29

I47

I47

I53

I27

I27

I27

I27

I27

I27

I27

I27

I45

I45

I55

I49

I49

I51

I35

I35

I35

I35

I37

I37

I37

I37

I43

I43

I43

I43

I31

I31

I33

I33

I33

I33

I31

I31

I39

I39

I41

I41

I41

I41

I39

I39

I57

I59

I63

I59

I57

I61

I61

I22

I69

I67

I67

I67

I67

I69

I69

I69

I75

I71

I73

I73

I71

I71

I71

I75

I75

I75

J19

J19

J19

J19

J17

J15

J15

J27

J27

J27

J27

J23

J25

I79

I77

I79

I77

I105

I103

I105

I103

L4

K15

K27

K27

K15

K15

K19

A

AR

AS

AZ

AZK

B

BA…Z

BAM

BAMW

BAW…Z

BHA…Z

BHAM

BR

BR…UU

BRI

BRI…UU

C

CF…B

CF…BM

CF…BR

CF…BRM

CF…BUU

CF…BUUM

CF…BUUR

CF…BUURM

CF…FB

CF…FBR

CF…FBUU

CF…FBUUR

CF…FWBR

CF…FWBUUR

CF…G

CF…VB

CF…VBM

CF…VBR

CF…VBRM

CF…VBUU

CF…VBUUM

CF…VBUUR

CF…VBUURM

CF…WBR

CF…WBUUR

CF…WBUUR/SG

CF－FU1

CF－RU1

CF－SFU…B

CFE…B

CFE…BR

CFE…BUU

CFE…BUUR

CFE…VB

CFE…VBR

CFE…VBUU

CFE…VBUUR

CFES…B

CFES…BR

CFES…BUU

CFES…BUUR

CFKR

CFKR…R

CFKR…V

CFKR…VR

CFKR…VUU

CFKR…VUUR

CFKR…UU

CFKR…UUR

CFKRE

CFKRE…R

CFKRE…V

CFKRE…VR

CFKRE…VUU

CFKRE…VUUR

CFKRE…UU

CFKRE…UUR

CFS

CFS…F

CFS…FW

CFS…FV

CFS…V

CFS…W

CFS…WV

CL

CR

CR…B

CR…BR

CR…BUU

CR…BUUR

CR…R

CR…UU

CR…UUR

CR…V

CR…VB

CR…VBS

CR…VBSR

CR…VBR

CR…VBUU

CR…VBUUR

CR…VR

CR…VUU

CR…VUUR

CRB

CRB…UU

CRBC

CRBC…UU

CRBFV

CRBHV…A

CRBHV…AUU

CRBS

CRBS…AUU

CRBS…V

CRBS…VUU

CRBT…A

CRBTF…A

CRH…VB

CRH…VBR

CRH…VBUU

CRH…VBUUR

CRY…V

CRY…VR

CRY…VUU

CRY…VUUR

D

DS

G

GE…E

GE…EC

GE…EC－2RS

GE…ES

GE…ES－2RS

GE…G

M

M61 M62

Spherical Bushings

Spherical Bushings

Thrust Bearings



Inner Rings

Inner Rings





L-Balls

L-Balls

Inner Rings

Inner Rings

Inner Rings

Inner Rings

Inner Rings








Roller Bearings

Roller Bearings

Roller Followers

Roller Followers

Roller Followers

Roller Followers


Roller Followers

Roller Followers

Roller Bearings

Roller Bearings

Roller Followers

Roller Followers

Roller Followers

Roller Followers

Roller Followers

Roller Followers



Roller Bearings

Roller Bearings









Thrust Needle bearings

Cam Followers

Roller Followers

Roller Followers


PILLOBALLs

PILLOBALLs

PILLOBALLs

PILLOBALLs

PILLOBALLs

PILLOBALLs

PILLOBALLs

PILLOBALLs

PILLOBALLs








Roller Followers

Roller Followers

Spherical Bushings

Spherical Bushings

Spherical Bushings

Spherical Bushings

Super Flexible Nozzle

















Roller Bearings

Roller Bearings


Thrust Bearings





K19

K19

F7

D9

D31

H10

H5

C5

C21

C22

C9

K51

K49

H25

H25

H25

H13

H13

D41

D29

D61

D29

D61

D89

D89

E7

E13

I97

I97

I93

I93

I99

I93

I93

E19

E19

I90

I90

I91

I91

I91

I91

G9

G9

E7

E13

G5

G5

G7

G7

G5

G5

G7

G7

F7

I65

I101

I101

L3

K37

K38

K43

K42

K40

K39

K41

K44

K53

D23

D7

D55

D9

D55

D83

D83

I89

I89

K11

K11

K23

K23

K58

K59

K59

B7

D7

D77

D29

B7

B21

B21

B49

B7

B7

B17

B17

D9

D31

E7

E13

L19

F7

B27

B29

B7

B7

GE…GS

GE…GS－2RS

GS

GTR

GTRI

I

IRB

IRT

K

KT

KT…EG

KTV…EG

KTW

L

LHS

LHSA

LRB

LRBZ

LRBZ…B

LRT

LRTZ

N

NA 48

NA 49

NA 49…UU

NA 69

NA 69…UU

NAF

NAFW

NAG 49

NAG 49…UU

NART…FR

NART…FUUR

NART…R

NART…UUR

NART…UUR/SG

NART…VR

NART…VUUR

NAS 50…UUNR

NAS 50…ZZNR

NAST

NAST…R

NAST…ZZ

NAST…ZZR

NAST…ZZUU

NAST…ZZUUR

NATA 59

NATB 59

NAU 49

NAU 49…UU

NAX

NAX…Z

NAXI

NAXI…Z

NBX

NBX…Z

NBXI

NBXI…Z

NTB

NUCF…BR

NURT

NURT…R

O

OS

P

PB

PHS

PHS…EC

PHSA

PHSB

POS

POSB

POS…EC

PRC

R

RNA 48

RNA 49

RNA 49…UU

RNA 69

RNA 69…UU

RNAF

RNAFW

RNAST

RNAST…R

S

SB

SB…A

SBB

SBB…－2RS

SNA

SNM

SNPT

T

TA…Z

TAF

TAF…/SG

TAFI

TAM

TAMW

TAW…Z

TLA…UU

TLA…Z

TLAM

TLAMW

TLAW…Z

TR

TRI

TRU

TRU…UU

W

WR

WS

Y

YB

YBH

YT

YTL

M

IKO Linear Motion Rolling Guides are manufactured through a control system

that alleviates their impact on the global environment to meet the quality

requirements of ISO 14001 in compliance with the quality requirements level

of ISO 9001 for quality improvement.

The standard products listed in this catalog comply with the specifications of

the ten hazardous materials cited in the European RoHS Directive.

Gentle to The EarthNippon Thompson Co., Ltd. is working to develop global environment-friendly products.

It is committed to developing products that make its customers’ machinery and

equipment more reliable, thereby contributing to preserving the global environment.

This development stance manifests well in the keyword “Oil Minimum.”

Our pursuit of Oil Minimum has led to the creation of

IKO’s proprietary family of lubricating parts as “C-Lube.”

Products Underpin SustainTechnology LeapsNippon Thompson Co., Ltd. was the first Japanese manufacturer to develop needle bearings on its own and has since expanded into the arena of linear motion rolling guides (Linear Motion Series and Mechatro Series) on the support of its advanced expertise. The company now offers a vast assortment of ingenious products, including the world’s first C-Lube Maintenance-Free Series, to address increasingly diversified customer needs and thus sustain technology leaps.

C-Lube Maintenance-Free Series Products Evolving from the “Oil Minimum” ConceptWe have developed lubricating parts impregnated with a large amount of lubricant as C-Lube Series to save the customer’s oiling management workload and built them into bearings and linear motion rolling guides.The C-Lube Series not only keeps products maintenance-free for long by giving them an optimal and minimal amount of a lubricant for an extended period of time but also contributes greatly to preserving the global environment.

Needle BearingsMachine elements essential to any industry

Linear Motion Rolling Guides/Linear Motion SeriesAvailable in broad sizes, from minimum to extra-large

Linear Motion Rolling Guides/Mechatro SeriesA merger of precision machining expertise and electronics

M63 M64

M

CAT-1586E　 C All rights reserved　AKA

Printed in China 2020.09

Although all data in this catalog has been carefully compiled to make the information as complete as possible, NIPPON THOMPSON CO., LTD. shall not be liable for any damage whatsoever, direct or indirect, based on on any of the information contained in this catalog.NIPPON THOMPSON CO., LTD. makes no warranty, either express or implied, including the implied warranty of merchantability or fitness for a particular purpose.

NIPPON THOMPSON CO., LTD.

M65

SERVICE NETWORK OF PRODUCTS

Head Office : 19-19, Takanawa 2-chome, Minato-ku,Tokyo, 108-8586, Japan

Phone : +81 (0)3-3448-5850 Fax : +81 (0)3-3447-7637 E-mail : [email protected] URL : https://www.ikont.co.jp/eg/ Plant : Gifu, Kamakura

NIPPON THOMPSON CO., LTD. (JAPAN) IKO INTERNATIONAL, INC. (U.S.A.)East Coast Operations (Sales Head Office) 91 Walsh Drive, Parsippany, NJ, 07054, U.S.A. Phone : +1-973-402-0254 Toll Free : +1-800-922-0337 Fax : +1-973-402-0441 E-mail : [email protected] Operations 101 Mark Street, Unit-G, Wood Dale, IL, 60191, U.S.A. Phone : +1-630-766-6464 Toll Free : +1-800-323-6694 Fax : +1-630-766-6869 E-mail : [email protected]

Minnesota Sales Office 1500 McAndrews Road West, Suite 210, Burnsville, MN, 55337, U.S.A. Phone : +1-952-892-8415 Toll Free : +1-800-323-6694 Fax : +1-952-892-1722 E-mail : [email protected] Coast Operations 9830 Norwalk Boulevard, Suite 198, Santa Fe Springs, CA, 90670, U.S.A. Phone : +1-562-941-1019 Toll Free : +1-800-252-3665 Fax : +1-562-941-4027 E-mail : [email protected]

Silicon Valley Sales Office 1500 Wyatt Drive, Suite 10, Santa Clara, CA, 95054, U.S.A. Phone : +1-408-492-0240 Toll Free : +1-800-252-3665 Fax : +1-408-492-0245 E-mail : [email protected] Operations 3235 Satellite Boulevard Building 400, Suite 230 Duluth, GA 30096, U.S.A. Phone : +1-770-418-1904 Toll Free : +1-800-874-6445 Fax : +1-770-418-9403 E-mail : [email protected] Operations 8105 N. Beltline Road, Suite 130, lrving, TX, 75063, U.S.A. Phone : +1-972-929-1515 Toll Free : +1-800-295-7886 Fax : +1-972-915-0060 E-mail : [email protected]

NIPPON THOMPSON EUROPE B.V. (EUROPE) The Netherlands (Sales Head Office) Keersopstraat 35, 3044 EX, Rotterdam, The Netherlands Phone : +31 (0)10-462 68 68 E-mail : [email protected] Branch Mündelheimer Weg 54, 40472 Düsseldorf, Germany Phone : +49 (0)211-41 40 61 Fax : +49 (0)211-42 76 93 E-mail : [email protected]

Regensburg Sales Office Im Gewerbepark D 30, 93059 Regensburg, Germany Phone : +49 (0)941-20 60 70 Fax : +49 (0)941-20 60 719 E-mail : [email protected]

Neunkirchen Sales Office Gruben Str. 95c, 66540 Neunkirchen, Germany Phone : +49 (0)6821-99 98 60 Fax : +49 (0)6821-99 98 626 E-mail : [email protected]. Branch 2 Vincent Avenue, Crownhill, Milton Keynes, Bucks, MK8 0AB, United Kingdom Phone : +44 (0)1908-566144 Fax : +44 (0)1908-565458 E-mail : [email protected] Branch Autovia Madrid-Barcelona, Km. 43,700 Polig. Ind. AIDA - Nove A-8, Ofic. 2-1 19200 Azuqueca de Henares, (Guadalajara) Spain Phone : +34 949-26 33 90 Fax : +34 949-26 31 13 E-mail : [email protected] Branch Bâtiment le Raphaël-Paris, Nord 2, 22 avenue des Nations BP54394 Villepinte 95943 ROISSY C.D.G Cedex France Phone : +33 (0)1-48 16 57 39 Fax : +33 (0)1-48 16 57 46 E-mail : [email protected]

IKO THOMPSON KOREA CO.,LTD. (KOREA)201, Worldvision Bldg., 77-1, Yeouinaru-ro,Yeongdeungpo-gu, Seoul, Korea Phone : +82 (0)2-6337-5851Fax : +82 (0)2-6337-5852E-mail : [email protected]

IKO THOMPSON ASIA CO., LTD. (THAILAND) 1-7 Zuellig House, 3rd Floor, Silom Road, Silom, Bangrak, Bangkok 10500, Thailand Phone : +66 (0)2-637-5115 FAX : +66 (0)2-637-5116 E-mail : [email protected]







IKO THOMPSON BEARINGS CANADA, INC. (CANADA) 731-2425, Matheson Boulevard East, 7th floor, Mississauga, Ontario, L4W 5K4, Canada Phone : +1-905-361-2872 Fax : +1-905-361-6401 E-mail : [email protected]

IKO BRASIL SERVIÇOS EMPRESARIAIS EIRELI (BRAZIL) Rua Frei Caneca 1407, Condominio Edificio Barão de Monte Cedro, Cjs. 801/802, Consolação, São Paulo- SP Cep : 01307-909 Phone : +55 (0)11-2366-3033 E-mail : [email protected]

IKO-THOMPSON (SHANGHAI) LTD. (CHINA)Shanghai (Sales Head Office) 1608-10, MetroPlaza No.555, LouShanGuan Road, ChangNing District, Shanghai, People's Republic of China, 200051 Phone : +86 (0)21-3250-5525 Fax : +86 (0)21-3250-5526 E-mail : [email protected] Branch Room1506, Jingtai Tower, NO.24, Jianguomenwai Avenue, Chaoyang District, Beijing People's Republic of China, 100022 Phone : +86 (0)10-6515-7681 Fax : +86 (0)10-6515-7689 E-mail : [email protected] Branch Room 834, Garden Tower, Garden Hotel 368 Huanshi East Road, Yuexiu District, Guangzhou, Guangdong People's Republic of China, 510064 Phone : +86 (0)20-8384-0797 Fax : +86 (0)20-8381-2863 E-mail : [email protected] Branch Room 2300, Truroll Plaza No.72, Wusheng Road, Qiao kou District, Wuhan, Hubei, People's Republic of China, 430033 Phone : +86 (0)27-8556-1610 Fax : +86 (0)27-8556-1630 E-mail : [email protected] Branch Room1808, KEENSTAR Building 18, Chuangye 2nd Rd 248, Bao'an, Shenzhen, Guangdong, People's Republic of China, 518081 Phone : +86 (0)755-2265-0553 Fax : +86 (0)755-2298-0665 E-mail : [email protected]

Ningbo Office Room 3406, Zhongnongxin Building, No.181, Zhongshan East Road, Haishu Ward, Ningbo, Zhejiang, People's Republic of China, 315000 Phone : +86 (0)574-8718-9535 Fax : +86 (0)574-8718-9533 E-mail : [email protected] Qingdao Office Room 1111, Building 9, Qingdao Science and Technology City, No. 7 Wuyang Road, North District, Qingdao City, Shandong, People's Republic of China, 266045 Phone : +86 (0)532-8670-2246 FAX : +86 (0)532-8670-2242 E-mail : [email protected] Shenyang Office 2-1203 Tower I. City Plaza Shenyang NO.206, Nanjing North Street, Heping District, Shenyang, People's Republic of China, 110001 Phone : +86 (0)24-2334-2662 FAX : +86 (0)24-2334-2442 E-mail : [email protected]

NEEDLE ROLLER BEARINGS - Bianchi Industrial

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Transcript of NEEDLE ROLLER BEARINGS - Bianchi Industrial